AI businesses that made real money.

You describe an app in plain language. Base44 generates a working web app with its own database, user login and hosting, so you never touch a server.

It launched in the month that AI models became good enough to write a whole app. It sold to people who cannot program, it charged from day one, and it was sold to a company that already had millions of customers.

A company uploads its documents or gives its website address. Chatbase turns that material into a chat agent that answers customer questions on the site, by email or by phone, and hands the conversation to a person when it cannot answer.

It launched the obvious application of a new model within weeks, with a pricing page on the first day. The founder built the parts around the model instead of a model, so every model upgrade improved the product for free. Then it moved from a consumer toy to business customers who stay.

An app for iPhone, Android, Mac, Windows and the web that records meetings, phone calls and lectures, writes a transcript with the speakers identified, and then a summary with action items. A user can also ask questions about a recording. It is free for 30 minutes a month; Pro costs US$100 a year in the app stores.

It reached the App Store early, in July 2023, with the simplest form of the idea: press one button, get a transcript and a summary. The founder paid for Meta ads while they still worked for a new kind of app, tested paywalls constantly and moved buyers to annual plans. He works alone with AI coding tools, so in his own 2026 account about US$3 million of about US$7 million a year stays as profit.

A calendar that publishes posts to more than 30 social networks: X, LinkedIn, Instagram, TikTok, YouTube, Reddit, Bluesky, Discord and others. The whole code is open source, so anyone can run it on their own server for free; the company sells the hosted version from US$29 a month. Since 2025 AI agents such as Claude, ChatGPT and OpenClaw can connect to it through an MCP server, a command-line tool and a public API, so an agent drafts and schedules the posts and a person approves them in the calendar.

The founder took a twenty-year-old product category with no open-source entry and open-sourced all of it, which gave him millions of Docker downloads and 37,000 GitHub stars without a marketing budget. Revenue stayed small for a year. It multiplied when he turned the product toward people who automate their posting with n8n workflows and, from late 2025, with AI agents, which need an API-first scheduler and keep paying because they post without human effort.

An app for iPhone, Android, Mac, Windows and the web that records speech and returns finished text: a clean note, an email, a list, a social post or a meeting summary split by speaker. A phone keyboard and a desktop dictation tool let users speak into any other app. It handles more than 90 languages and recordings of up to 90 minutes.

The first apps that combined OpenAI's Whisper and ChatGPT for voice notes appeared in 2023, and the founder found them "not implemented well enough". His team built a simpler one, collected early users and feature requests through lifetime deals on AppSumo in 2024, and in 2025 grew with advertising and paywall tests measured in Adapty's subscription data.

An iPhone app for makeup. The user uploads a selfie without makeup and a photo of a makeup look, for example from TikTok or Instagram. The app's AI applies that look to the user's own face, then gives a step-by-step routine and a list of products to buy. It is free to download and paid for with subscriptions through the App Store.

Its result is a before-and-after picture of the user's own face, which a short video shows in seconds. The founder chose TikTok as the channel before he built the app, then tripled revenue from almost the same installs by moving and testing the paywall with Adapty.

A web app for real estate agents and photographers. The agent uploads a photo of a room, chooses the room type and a furniture style, and gets back the same room with furniture in about 10 to 15 seconds. It can also remove existing furniture. Plans are monthly subscriptions sized by the number of photos, and the top plan includes an API.

In 2023, general image generators that were asked to furnish a room also changed the room: the founder said DALL-E might turn a window into a wall painting or add a door, which misrepresents a property. VSAI's own model finds the floor, the ceiling, the mirrors and the doors first and only then adds furniture. It cost US$12 to US$69 a month in early 2024, while VSAI's comparison page lists other staging services at US$16 to US$29 per photo with 12 to 48 hours of waiting. Zillow, the listing portal where such photos end up, bought it.

One API address, in the same format as OpenAI's API, that forwards each request to one of more than 200 models from more than 40 providers, such as OpenAI, Anthropic and Google, and records the cost of each request. Customers prepay credits at the providers' prices plus a 5% fee, bring their own provider keys for free, or run the open-source code on their own servers. DevPass is a monthly subscription for AI coding agents.

Every team that builds with AI models ends up with several provider accounts, keys, invoices and SDKs. One gateway with open code replaces them, and a developer can read the code before sending traffic through the hosted version. In 2026 the founders added DevPass, a flat monthly price for coding agents with an allowance of up to three times the price in model usage. The verified monthly receipts grew from US$57,994 in January 2026 to US$249,922 in August 2026; TrustMRR does not split them by product.

A customer enters a website address. SEObot reads the site, chooses search phrases, makes a plan of articles, writes the articles with language models and publishes them to the customer's blog every week. The customer pays a monthly plan of article credits and can approve, edit or decline each article.

The founder had about 117,000 followers on X and more than 20 other products for the same customers, so the tool had buyers before it had a public launch. It sold a finished result, a published article, for about US$3.50 to US$5.44. Payment records show about US$100,000 a month at the end of 2025 and a fall in every month since January 2026.

A web application that turns an idea or a script into a finished video in which no person appears on camera: a script written by a language model, a synthetic voice, stock footage or AI images, captions and music. It makes vertical shorts and horizontal videos of up to 20 minutes, and it can upload to a YouTube channel that the customer connects. Customers pay a monthly or yearly subscription that includes credits. There is no free plan and no free trial.

A developer in Bangalore formed a company with an American YouTuber who already had an audience of people who want faceless channels, so customers paid from the first day. Affiliates receive 33% of every payment and brought about a tenth of all revenue, and Meta ads brought more. Nobody could use the product without paying, so no free user consumed paid AI models. Verified revenue reached about US$85,000 a month for six months, and then fell by half.

Software for marketing agencies and local businesses that want to appear higher in Google Maps and in local search results. One subscription covers a rank tracker that checks positions from a grid of points on the map, one-click listing of a business on more than 550 directories, scheduled posts and review replies for Google Business Profile, a database of local business contacts, and AI-written articles that aim to make ChatGPT and other assistants recommend the business.

The founder had an audience before the product existed: a daily YouTube show about SEO since 2023 and an X account that has 62,000 followers today, so the first customers cost nothing. A developer co-founder built the software with AI coding tools. The product started as one plain rank tracker at US$19 a month, grew into a bundle at US$57 to US$2,997 a month, and by July 2025 the first payment of a new customer from a paid ad covered the cost of that ad.

A user gives a topic, a text, a PDF, a web address or a YouTube link, and a language model writes a slide presentation from it. MagicSlides runs as an add-on inside Google Slides and as a web application that exports editable PowerPoint, PDF and Google Slides files. Since July 2026 the same account also includes AI tools for spreadsheets, documents, meeting notes and a design canvas, under the name Magic Suite.

It appeared in January 2023 inside Google Slides, a program where people already work, when writing slides from one sentence was new, and users showed it to each other without paid advertising. A blog about presentation topics then brought about 80% of new users from Google search, by the founder's account. Both channels weakened: search traffic fell, and Google added the same function to Slides. The verified total is real, and so is the fall: monthly revenue fell by half between February and July 2026.

A business or a marketing agency enters a website. RankAI learns the business and its market, decides which pages the site should have, writes them, publishes them to the site's content management system, fixes technical search problems, measures the results and rewrites pages that do not perform, for Google and for AI assistants. Agencies can resell it under their own brand.

It sells what a search agency sells, the research, the pages, the publishing and the rewrites, as a monthly service run mostly by software, for a fraction of an agency fee. Agencies resell it under their own brand. In 2026 it added visibility in AI answers, and verified revenue more than doubled between March and July 2026.

An AI agent for paid advertising that works inside ChatGPT, Claude, Claude Code, Cursor and other AI assistants. It connects to the customer's ad accounts at Google, Meta, LinkedIn, TikTok, Amazon and ChatGPT Ads, researches keywords, builds campaigns (always created paused), reports results and finds wasted spend. Scheduled agents can also watch the accounts and make reversible changes. The customer pays the ad platforms directly.

It went where the users already were: an app in ChatGPT's app store, a plugin in Claude's directory and in Claude Code, and setups for Cursor and Codex, in the months when these directories were new. It charges per tool call instead of a share of ad spend, so a small advertiser starts at US$49 a month. And it applied to the platforms' own API programs; the company says Google approved it in June 2026 and Amazon admitted it to its partner network.

A LinkedIn lead finder for B2B sales teams. You list LinkedIn profiles to watch; traxy collects the people who like, comment on or repost their posts, scores each one against your ideal buyer, adds an email address and phone number, and an AI agent can write and send the first message.

The founder already ran a LinkedIn ghostwriting agency and built the lead tool that the agency needed. He sold it with the tool itself: traxy found the leads, and his team contacted them. Daily posts on X added trials, and credit-based prices let heavy users pay more.

A web application for people who sell simple books through Amazon's Kindle Direct Publishing. The user describes a book, and AI models produce its pages: line drawings for coloring books, puzzles and mazes for activity books, text and layouts for journals and planners, and a description for the Amazon listing. A subscription buys credits. By the terms of service one generated image costs 200,000 credits, so the smallest plan, with 40 million credits a month, pays for about 200 images.

It sold one narrow job to a group that already existed: people who learn from YouTube channels and paid courses how to publish many simple books on Amazon. The product carries that group's own word in its name, tutorial channels in English and Italian showed it from January 2025, and the site runs an affiliate script. Two thirds of the US$642,409 came in the first 14 months, at about US$30,300 a month. The last 12 months average about US$17,600 a month.

Software that asks ChatGPT, Perplexity, Google AI Mode, Claude, Gemini and Grok the questions that a brand's customers ask, records whether each answer names the brand and which web pages it cites, and then suggests fixes, writes articles and contacts the cited sites. Agencies can resell it under their own name.

Four owners of marketing agencies built it for their own clients, who asked whether AI recommended them. They launched it with plans made for agencies and a 30% lifetime commission for agencies that resell it. The average subscription now pays about US$206 a month, close to the price of the agency plans.

A web editor for screenplays and novels. It keeps the industry page format automatically, turns the scene headings and character names in the script into lists of scenes, characters and locations, and adds AI help that the writer calls on: short continuations, script review, character images and storyboard frames. Several people can edit one script at the same time.

The founder had worked as a screenwriter and knew which part of the job is tool work: the page format, and keeping characters and scenes consistent across a long draft. He built the editor around that work and kept the AI in the role of a helper. He says Claude Code wrote all the code. The beta grew through invite codes that users earned by posting about it, and monthly revenue rose from US$5,136 in May 2026 to about US$46,000 in August and in September.

An iPhone and Android app that estimates calories, macronutrients and micronutrients from a photo of a meal, with a barcode scanner for packaged food and a log of weight and BMI. It is free to download; the service needs a subscription after a 3-day free trial, at US$9.99 a month or US$49.99 a year in the US store.

One founder released it in August 2025, after Cal AI, released in April 2024, had shown that photo calorie counting sells. It has a hard paywall, a short trial and cheap yearly plans. It appears to have started in France: the French App Store shows 598 ratings against 138 in the US store. The owner lists TikTok as the only marketing channel.

A web app that writes LinkedIn posts in the member's own style from an idea, a voice note, a video, an article or a short interview with an AI, then schedules and publishes them. Team plans add approvals, a shared calendar and analytics for each employee. It can also be used from inside Claude and ChatGPT.

It entered a market where people already paid for tools such as Taplio, and did the one core task better: writing the post. The founders' public posts brought the first customers and a lifetime-deal platform, and that deal paid for growth without investors. Subscriptions, partnerships with LinkedIn influencers, affiliates and a move to team plans came after.

An AI agent for search engine optimisation. The customer enters a website and connects Google Search Console. ChatSEO reads the real clicks, impressions and positions, gives a short list of changes in order of impact, writes articles and page titles, and can publish them to WordPress, Shopify or Webflow. Plans cost €29 to €79 a month.

One co-founder, Paul Vengeons, had worked as an SEO consultant in France since 2020 and had more than 10,000 followers on X, and the agents follow his method. The answers come from the customer's own Search Console data, the price is a fraction of Semrush or an agency, and the co-founders post free SEO guides every day that send readers to a 7-day free trial.

One chat window and one bill for the models of OpenAI, Anthropic, Google, xAI and others, plus image and video models. You can change the model in the middle of a conversation. Magai pays the model providers for every message, and the customer pays Magai a flat monthly price that starts at US$20.

The founder had written a marketing blog for ten years, so his own readers bought on the first day. He built the first version in 8 weeks with the no-code tool Bubble, because he had no money for developers. He sold one thing that the model makers do not sell: all of their models in one subscription.

An iPhone app that coaches boxing. The user uploads a video of shadowboxing, bag work or sparring, and the AI scores the technique in seven areas (stance and balance, guard, footwork, punch selection, combinations, head movement, range control) with corrections and drills. It also has an AI chat coach, training programs, a punch callout mode with audio cues, a round timer, AI food logging from a photo, a barcode or voice, and a weight-cut mode. Every feature needs a subscription.

It moved the structure of the founder's first app, Wrestle AI, to boxing, a sport that people can train alone: an AI breakdown of a training video, a calorie tracker and a weight-cut mode, all behind a subscription at the same prices. Users came from Meta ads and influencers, according to the founder's TrustMRR profile, with a self-reported marketing spend of US$10,000 a month.

An iPhone app that turns a voice memo of 30 seconds to 2 minutes into an Instagram or LinkedIn carousel, a reel or TikTok script, a thread for X, story scripts and hooks. It places the text on templates and exports PNG images or a PDF. It can also learn the user's writing style, suggest post ideas, and turn a pasted video link into the user's own carousel.

A carousel needs both writing and design. Draft AI asks for a minute of speech instead and returns finished slides, plus scripts, threads and hooks from the same recording. It charges before the first result, so everyone who uses it has subscribed or started the trial of a paid plan.

A phone app for practicing a foreign language by speaking. The learner talks out loud with an AI tutor in short voice lessons and free role plays, and gets feedback after each attempt. Around that sit a daily word feed, quizzes, verb drills, listening clips and a progress score. Nine languages. The download is free and the lessons need a subscription, listed in the US App Store at US$7.99 or US$8.99 a week or US$29.99 to US$79.99 a year.

The tutor is an AI model, so the company pays for computing and has no teacher to pay by the hour. That allows a yearly price of US$47.99 to US$79.99. Customers came from a very large number of short videos on TikTok and Instagram: first slideshows that the founder's own tool generated and that two people posted from about 12 accounts, then videos by paid creators. Yearly plans are paid in full on the first day, so the cash arrived early. Half of all revenue came in September 2026, and daily sales have fallen since.

A web app that designs the screens of an iPhone or Android app from one sentence or a reference image, with AI. You chat to change the design, then paste it into Figma as editable layers, export HTML or React code, or send it to an app builder. AI coding agents can also use it through an API.

It took a narrower job than the general AI design tools, mobile apps only, for people who build apps without design skills. The three founders reused what they had learned from four earlier design tools, built it in three weeks, and showed finished designs on X before the launch. Each new Gemini model gave them a better result and a new demo to post.

You photograph a meal. TrackAI returns the dishes it recognises, an estimated weight, the calories, and the protein, fat and carbohydrates. You can correct an ingredient or a weight, and the totals update. The app also shows daily and weekly statistics, sends meal reminders and gives rewards for days in a row.

It built a product that already sold well in English for Ukraine and Central and Eastern Europe: Ukrainian language, local dishes and lower local prices. The model that reads the photo is rented and the billing is a ready-made service. The only growth channel the founder names is paid advertising on Meta.

A desktop app and Roblox Studio plugin that builds parts of a Roblox game from a written request: game systems, user interfaces, animations, visual effects, sounds and 3D builds, written straight into the user's project after the AI has read it. Users pay for AI tokens with a monthly plan or one-time top-ups, and can install ready-made systems from a marketplace.

The founder had made Roblox games for nine years, with 200 million visits on his own games, and his launch post on the official Roblox developer forum was read 112,656 times. He launched free, with 1 million tokens a month, and charged US$20 a month for heavy use. Then he added top-ups and a marketplace of tested systems that the AI installs, instead of writing every system from nothing.

A website and phone app that masters a song from a written request such as "warm, powerful and wide stereo". Each request comes back as a new revision that the user can compare with the earlier ones, and a Spotify link can serve as the reference for loudness and tone. The same subscription includes a splitter that separates a song into vocals, drums, bass and instruments. Since September 2026 the company also offers a generator that makes a music video from the song. Unlimited use costs US$16 a month or US$48 a year on the web.

For its first 20 months the product brought in about US$3,500 a month. Then three things came together: phone apps with weekly plans from August 2025, web plans with unlimited use at US$4 a month billed yearly, and a new group of customers, people who make songs with AI generators such as Suno and need the last step done for them. Monthly revenue rose 7.2 times between January and July 2026. No source states which of the changes caused the rise.

An AI tool that writes, makes and posts short "faceless" videos for TikTok, YouTube Shorts and Instagram Reels: script, AI images or clips, voiceover, music and captions. It also makes long videos of 8 to 10 minutes, AI UGC ads and talking avatars, and it can rebuild a video that did well for another creator.

It sells a channel instead of a single video: a series picks the topic, makes the video and posts it every day. Growth came from ads and from affiliates who keep 30% of each payment for life, and the founder swaps in new video models when better ones appear.

An AI agent for Upwork. It reads the Upwork job feed against filters that the customer sets, checks with AI whether each job fits, writes a proposal and the answers to the screening questions from the customer's own knowledge base, and submits it from the customer's Upwork account, with optional boosting. Replies are tracked in an inbox. An MCP server and a REST API let the customer's own AI agent run it.

The founder had the problem himself. Upwork had become his agency's best sales channel, but 10,000 jobs a day are posted around the clock and he could cover only about 8% of them by hand. He built the tool for his own agency and charged agency owners a business price from the start. Two Upwork coaches, who advise freelancers and agencies, switched their clients to it as affiliates, and that produced most of the growth.

A web app that turns a short description of a business into a marketing strategy, customer profiles, ideas and a task list, using GPT-4 with long prompts written by two marketers. Free AI tools bring the visitors; the full strategy is sold for a one-time payment.

It put the founders' marketing method behind a simple form at the time when people were trying to do marketing with ChatGPT and getting weak answers. A one-time price matched a need that comes rarely, and free tools brought search traffic without paid ads.

A dictation app for Mac, Windows, Linux, Chrome, iPhone and Android. You press a keyboard shortcut and speak, and the text appears with punctuation in whatever app or website you are typing in. The speech is transcribed in the cloud by the open-source Whisper model through Groq's API, or, since 12 October 2026, offline on the computer.

It started as a free Chrome extension that the founder built for his father, then sold unlimited dictation everywhere for a low monthly price. The AI model is cheap to rent: Groq lists Whisper at US$0.04 to US$0.111 per hour of audio. Users came from Google: the site has more than 1,000 pages, one for each app and each need, and the founder says that an AI agent he made writes the blog posts.

An add-in for Microsoft Word, plus a web app, for German-speaking students who write seminar papers and theses. The student uploads the PDFs of the literature. While the student writes, fastwrite suggests the next sentence or a whole paragraph with a citation from those PDFs, and the Tab key accepts it. It also answers questions across all uploaded PDFs with the exact page, searches more than 20 million papers, and checks a draft against nine criteria that universities use for grading.

It puts the AI where German students already write, inside Word and in German, and each suggestion carries a citation from the student's own PDFs, so the student does not have to fear invented sources. A free plan without a time limit brings students in, and a monthly plan sold for the months in which they write turns some of them into paying customers.

A church connects the audio of its service, from a microphone or the sound desk, to Glossa in a browser and starts a stream. Glossa turns the speech into text, translates the text, and reads the translation aloud with a synthetic voice. Each visitor scans a QR code, picks one of more than 100 languages on a phone, and listens with earphones or reads the captions. The church needs no receivers and no interpreter booth. It pays for the minutes of speech in each language, not for the number of listeners.

Churches with members from many countries meet every week, and the older solutions cost too much for most of them: an interpreter for each language, or radio receivers to hand out and collect. Glossa charges US$5 for one hour of speech in one language, counts by the minute, and charges nothing for silence, songs or extra listeners, so a small church can start with four free hours and then a few dollars a week. The product is shaped for this one buyer: captions go into ProPresenter and OBS, which churches already run, and a church can fix how names, Bible quotations and its own terms are translated. A very small team can offer this because the speech recognition and the voices are rented from model companies and paid by use.

A web app that turns a short form, or a business name found on Google, into a complete WordPress site for a local business: a page for every service and service area, AI-written text and images, search settings, hosting on its own servers, and an AI agent for later edits. Agencies sell the sites to their clients as their own work.

The founder had sold this product by hand in his own agency, so he knew what agencies deliver: WordPress, a real page builder, and pages for each service and each town. The tool fills designer-made templates with AI text, so the output is consistent. It sells to agencies that build sites every month, which fits a monthly subscription, and it found them through his own posts and videos, with no ads.

An iPhone app for sprint training. You film a sprint, and the AI splits it into phases (reaction, drive, acceleration, top-end, speed and finish) and says what to fix. It also has an AI coach, adaptive sprint plans, a daily readiness check, strength workouts, a "Sprint Age" fitness score and calorie logging from meal photos. Every feature needs a subscription. It started as a track-and-field app and in August 2026 added a path for everyday people who want to get fit.

Two college track athletes already had about 150,000 Instagram followers who asked them every day for a training plan. They built that plan into an app without writing code, promoted it inside their own race videos, and priced it for teenagers.

An AI assistant that you reach by message. You send a voice note, a text, a screenshot or a forwarded email on WhatsApp, Telegram, iMessage, Slack or email, and it writes notes, tasks, draft posts and CRM updates into Notion and more than 1,000 other connected apps. It started as a voice-to-Notion tool. In 2026 it added a desktop app, a cloud computer, automations, and connections to Claude, ChatGPT and coding agents.

It reached people inside the chat app that they already open all day, so capturing an idea on a phone took one voice note. It aimed first at Notion users, whom the company told that ideas get lost on the phone. Ads on Facebook and Google then paid for fast growth in early 2026, until the founder stopped them in August 2026 because the costs were larger than the revenue.

A remote MCP server that gives an AI assistant such as Claude or ChatGPT tools to generate images, video, speech, music and 3D models with models from Google, OpenAI, ElevenLabs and others. The user installs one plugin or adds one address, logs in once and buys credits from CreativeClaw: US$10 for 1,000 credits, with a published credit cost for each model.

People already pay for an assistant and already ask it for pictures and video. CreativeClaw sells inside that conversation, so it needs no interface of its own, no sales calls and no provider accounts on the customer's side. Revenue stayed under US$5,300 a month for five months, then rose about 18 times in September 2026, after the founder had packaged the server for ChatGPT and prepared its entry in the plugin directories. He has not published the cause of the rise.

A phone app for iPhone and Android. The user picks a look, such as digicam flash, golden hour or vintage photobooth, and takes or uploads a selfie. The app sends the photo to Google's Gemini image model and returns the same person in that look within seconds. A free editor with film filters runs on the phone without AI. AI pictures cost credits, which come with a weekly subscription or in packs.

The demand existed before the app: photos that look as if a compact digital camera from the 2000s took them have been a trend on TikTok since at least 2022. Boothie sells that look without the camera, for a small weekly price, to the people who already post such photos. The founder says every user came from TikTok picture posts made by about a dozen accounts in three countries, with no paid advertising. One person could build it because the image model is rented from Google and paid for by the picture.

An AI study app. A student uploads class materials, such as PDFs, lecture slides, notes, images or YouTube videos, and gets answers with citations to those files, practice questions, flashcards, study guides, audio summaries and a topic-by-topic progress view. It runs on the web and, since May 2026, as an iOS app.

It starts from the student's own course files instead of general knowledge, so answers and practice questions point back to the material that the class uses. A free plan with monthly limits lets students try it, and Pro is sold by the week or by the month. Stripe shows about US$13,200 a month at the end of 2025; the seller says growth came with little to no marketing, and no source explains how students found it.

An AI tool that draws the screens of a mobile app from a text description or a reference image, refined in a chat and exported as HTML (design.appalchemy.ai, since February 2025). Since July 2026 also an AI app builder that turns a description into React Native code for iOS and Android, with a live preview on the user's phone (appalchemy.ai).

He solved a problem he had paid for himself and shipped the simplest version in about two weeks. Then he wrote useful Reddit posts with the product link in the middle and posted each one in many related subreddits. With 70 to 115 followers on X, he says this brought over 1 million views and about 20,000 signups by July 2025.

A web app that creates, launches and adjusts ad campaigns on Meta, Google, TikTok and LinkedIn from a written request. It writes the ads, makes images and videos, works in the customer's own connected ad accounts, and shows which ads to pause or give more budget. Agencies run it themselves from US$499 a month; for brands, Adle's staff run it for US$499 a month plus 15% of the ad spend.

The founders first ran a marketplace that paid creators in free products, and saw that their clients' results were decided inside the ad platforms. In 2024 they rebuilt the company around ad buying, sold it themselves through demos to agencies and brands, and added a plan where their own staff run the ads. Stripe shows revenue almost four times higher in March 2026 than in October 2025, then a fall.

A web app that turns a topic, notes, a PDF, a Word file, a spreadsheet, a YouTube link or a web page into a slide deck. The user approves an outline and a visual concept, then each slide is generated as one designed full-slide image, edited by chat, and exported to PowerPoint (.pptx), PDF or PNG.

It is run by a search marketer: its pages target what people type into Google, and its best month came from a list article on another company's blog that ranked there. A US$1 trial that needs a card turns visitors directly into subscribers at US$25 a month or US$99 a year.

A Chrome extension that adds folders, full-text search, a prompt library, bookmarks and export in four formats to the web pages of ChatGPT, Gemini, Claude and Grok. It sells no AI: users keep their own accounts, and the search index of their chats stays in their browser.

Heavy users of AI chat apps lose old answers, because the apps had no folders, no filtered search and no bulk export. AI Toolbox adds these inside the apps, for four apps at once, sells them mostly as one-time licenses, and, by the seller's account, finds its buyers through search pages instead of ads.

A business connects its lead forms, for example Facebook lead ads, LinkedIn forms or a website form, through Zapier or Make. About 10 seconds after each form arrives, Setter AI sends the person a WhatsApp message, answers questions, asks qualifying questions, follows up when there is no reply, and books the meeting in Calendly or Google Calendar. A chat window does the same on the business's website, and WhatsApp reminders reduce missed meetings.

It sold one promise that a customer can measure: a first reply to every new lead within 10 seconds, to businesses that already pay for many leads through Meta ads. A demo on the website brought sales calls through organic search before the product was built. Revenue then fell from US$9,000 to US$12,000 a month in late 2025 to under US$2,000 in September 2026, in the same months in which the founder launched other products.

A web app that turns a short text prompt into a website or mobile app screen, a logo, a brand kit or a marketing graphic. You edit the result on a canvas, export it, or publish it as a website on your own domain. An MCP server lets coding agents such as Claude Code and Cursor ask it for designs from inside a developer's project.

It named a problem that many builders saw in 2025 and 2026: screens written by AI coding tools look alike. It sold the fix inside those tools, as an MCP server for Claude Code, Cursor and other coding agents, first published on 29 March 2026. Stripe revenue in April was 12.2 times March. Since April revenue has fallen, and September was 37.2% below it.

A web app where an architect or interior designer uploads a SketchUp screenshot, a sketch or a photo and types what to change. A chat assistant called Vizzy returns a photoreal render, or a short video, that keeps the rest of the design. Plans cost US$15 to US$80 a month.

For two years it was a powerful node editor that architects did not want, and it made about US$150 a month. The founder replaced it with a chat box where you say what you want, and changed one-time payments to subscriptions. Stripe revenue then grew 5.3 times from November 2025 to March 2026. His salary paid for the slow years.

A paid library of more than 400 Agent Skills: packages of instructions, templates and scripts that an AI coding agent such as Claude Code, Codex or Cursor installs and follows to make a web page section, a slide deck, a set of images or a short video in one designed style. Every Skill page shows real output first. Some Skills are free; the others cost US$4.99 each or come with Premium at US$9.99 a month, US$79 a year or US$169 once.

AI coding agents can build a working page or deck, but in the founder's words their visual output often looks generic. Skillry sells finished visual styles, one task per Skill, shows real output before the sale, and adds new Skills almost every day under one subscription. When sales began on 28 September 2026, they held at about US$430 a day for 17 days.

A web app that writes a storyboard from one sentence, keeps the characters the same from scene to scene, generates each scene with video models rented from other companies (LTX, Kling, Seedance), and lets the user edit and export the film. Users pay with prepaid credits, on plans from US$12 to US$600 a month.

It put the newest video models, among them ByteDance's Seedance 2.0 from 14 April 2026, inside a storyboard editor that keeps characters consistent. Revenue grew from US$645 in May 2026 to US$32,697 in July. Then it fell by three quarters by September, and no source says why.

A web app for creators and small businesses on Instagram and TikTok. It reads the user's connected account, plans two weeks of posts, writes video scripts in the user's voice, designs carousels and edits the talking-head videos that the user records. A library of other creators' viral videos, with transcripts and an analysis of each opening line, lets the user turn a video that worked into a new script. US$9.90 a month or US$60 a year per brand. The user still publishes the posts.

The founder went where his buyers were. He stopped posting on X, where other founders are, and sold through short-form video on Instagram and TikTok, at the lowest price he could charge, in many countries and languages at once. Stripe data shows revenue of US$289 in June 2026 and US$13,041 in September 2026.

A web app that turns a screenshot, a mockup, a Figma design or a screen recording of a website into front-end code: HTML with Tailwind or CSS, React, Vue, Bootstrap or Ionic. The code is open source under the MIT licence and free to run with your own model keys. The hosted version at screenshottocode.com sells monthly credits, so the user needs no API key and no setup.

The founder released it as a free open-source tool nine days after he wrote that the new GPT-4 Vision and Turbo API previews allowed only 100 requests a day. Hacker News and GitHub trending brought the repository more than 35,000 stars in under three months, and the README sends readers on to the paid hosted version for people who do not want to set up keys and servers. It had made US$1,000 within 19 days, with a Stripe payment link and no user accounts.

A web app that writes threads, series of connected posts, for X, Threads, Facebook and LinkedIn with an OpenAI model. The user starts from one of 15 or more templates that carry engagement scores, and the app publishes or schedules the result. One plan at US$9 a month.

The founder, who has millions of followers, turned a post format that was going viral on his own Facebook page into templates and sold the tool for about US$5. It made US$26,522 in about two months, and then revenue fell. No source says which channel brought most customers.

A web app that creates one AI person, from chosen traits or from 1 to 4 photos of the user, and then generates photos, talking videos, outfit try-ons and product shots of that same person for Instagram, TikTok, ads and online shops. Plans cost US$19 to US$199 a month and include credits that each image or video second uses up.

General image generators make a new face with every prompt, so a brand or creator cannot build a recognizable character with them. This app saves the face once and generates everything else from it. One developer found users through AI directories, free single-feature tools and, later, guides written for search. Credits make the model costs grow with use.

A web studio that turns one photo of each person and one photo of each pet into a single AI-generated portrait of them together, in a chosen scene. The first three previews are free and watermarked. The first portrait costs US$19 and each additional one US$10, as a one-time purchase, and a portrait can be sent as a gift or printed on a framed print, mug, ornament or blanket.

It sells a picture that most pet owners do not have and cannot easily take: a good photo of themselves together with their pet. The customer sees a free preview before paying, so an ad only has to bring a person to the upload page. The founder says the sales come from ads, and the site says it advertises on Facebook and Instagram. Verified daily revenue rose from US$76 on 15 September 2026 to US$1,099 on 22 September.

You photograph your meal. Cal AI sends the picture to a rented AI model and returns an estimate of the calories, protein, carbohydrates and fat. No search, no portion menus.

It sold speed to people who gave up on manual food logging, it paid 250 influencers fixed monthly fees to reach them, and it had a 30-dollar-a-year price. The rented model made the hard part cost almost nothing to build.

You speak into your phone or browser. Talknotes transcribes the recording with a speech-to-text model and rewrites it in a style you pick: a clean transcript, a short note, a task list, a formal email, a blog post or a video script. It works in more than 50 languages and exports to text, email or a link.

A marketer who had learned to code one year earlier built it in a week, found that paid ads could buy customers for about US$50 each with a yearly plan that paid the ad bill up front, and sold the business for cash eleven months after launch, when the bugs and the support load became more than one person wanted to carry.

You upload a photo. In about five seconds remove.bg returns the same photo with the background cut away, so the person or product in front stands on a transparent layer. A small preview is free; full-resolution results, the API and the Photoshop plugin cost credits.

It took one task that every designer does by hand in Photoshop, made it one click and free, and let Product Hunt, Twitter and TechCrunch spread it. Then it charged professionals for resolution and for an API, stayed profitable with no investors, and sold to Canva, which had already built the tool into its own product a year earlier.

You upload a low-resolution image, often one made by Midjourney. Magnific enlarges it and invents plausible detail: skin pores, fabric, leaves. A slider sets how much the model is allowed to invent.

One founder had posted AI tutorials on X for a year before the launch, so the audience existed before the product. The tool did something that had no name yet, it charged from the first hour with no free trial, and two people ran it with no employees until the largest design platform in Europe bought it.

You upload a few selfies, choose backgrounds and clothing, and get 30 to 70 business headshots back in under 30 minutes. One payment of US$29 to US$59, no subscription. Companies buy credits so every employee's photo matches.

It took one ordinary purchase, the US$300 studio headshot, and sold it for US$29 the week the technology could do it. One-time pricing fitted a product people need once. Search pages for every city brought buyers without advertising, and company orders made the customers come back.

You describe a business idea, or you let the product choose one. Polsia then creates a company name, a website, an email inbox and a payment account. Its AI agents write code, send sales emails, post on X and run Meta adverts. One agent chooses one task every night, does it, and emails you a report.

The founder made his own fundraising the advertisement. In February 2026 he let the product answer investor emails in public, next to a live revenue counter. A new customer needs only an idea, so thousands of people tried the product each day. The counter annualized all money that entered the platform, so it grew faster than the subscription revenue.

A chat app for adults in which the user creates an AI character, called a Kindroid, by writing its backstory, key memories, personality, appearance and voice. The user then talks to it by text, voice call or live video call, and the character can send generated pictures and short videos of itself. The character keeps a memory of earlier conversations. The app is for users aged 18 or older and runs on the web, iOS and Android.

It launched in June 2023, when open-source language models had become good enough for a small company to build a companion, and when users of older companion apps were looking for a new one. The user writes the character, so a character from another app can be moved in. The company sells a subscription, prices its add-ons at the cost of the extra computing, and published an update about every eight days in 2026.

A phone and web app that records a lecture, or imports audio, video, a PDF, a document or a link, and makes a transcript, organized notes, flashcards, quizzes, a chat with the note and a short AI-narrated podcast of it. A student gets one free note; after that the app needs a subscription, which starts with a free trial.

Two former Loom staff built a premium-priced app for something students do several times a week, going to class, and sold it through short videos by a small group of contracted creators instead of paid ads. It charged from the first day, and revenue paid for growth with about 50% EBITDA margins until Quizlet bought it.

A marketer types a script, picks an AI actor from a library of more than 1,000 or creates a new one, and receives a short video of that actor speaking the script, in the style of a customer's phone video. The same ad can be made again with another face, another script or another language, so the marketer can test which version sells.

The two founders had bought video ads every week for their own mobile app, so they knew the buyer and the price. They sold AI-made ads as a service before they wrote the software. Then they advertised the product with its own output, and software agents did the growth work that a larger company hires people for.

A web application that turns an idea, a link or an existing viral video into a finished short video for TikTok, Instagram and YouTube: script, generated images or video, voice, captions, music and posting. Customers pay a subscription that includes credits, and each second of generated video costs credits.

It began as a tool for product launch videos, which a customer needs once. The founder saw customers use it for social videos, which they need every week, and built a second product for that use from the same code. Free tools that rank on Google and his audience on X brought the customers. Credits priced per second kept the price of each video above the cost of the model that made it.

A phone app for practicing a foreign language by speaking. The learner talks out loud with an AI tutor in everyday scenes and role plays, gets corrections on pronunciation and grammar during the conversation, and the app keeps a learning plan and remembers past mistakes. More than 25 languages. A free trial, then a subscription through the app stores.

Speaking is the part of language learning that most apps practice least, and the founders built the practice partner that they had been for each other. A short video format, in which the AI points out a creator's pronunciation errors, spread on TikTok through about 100 creators that the company manages, with no paid ads by the co-founder's account, and a simple subscription turned a small part of the free users into payers.

A phone app that scores a selfie. The user uploads a photo of his face, and the app returns a score up to 100 with ratings of the jawline, the cheekbones, the skin and masculinity, and tips such as starting a skin care routine. The results are shown after the user subscribes, at about US$4 a week, or invites three friends.

Young men were already posting photos online and asking strangers to rate their looks. Umax turned that habit into a private score from an AI model. One founder built it at almost no cost on a rented vision model, and creators in one small niche spread it, because a score makes a before-and-after video easy to show. Revenue was highest within months of the launch and has fallen since.

A text editor for students and researchers in which a language model suggests the next sentence, writes from the PDFs you upload, and inserts citations in more than 1,700 styles. Free with a daily word limit; paid plans remove the limits.

After three years stuck at US$2,000 a month as a marketing-copy tool, it narrowed to one group, students writing papers, and sold to them through short videos on TikTok and Instagram made by many small creators. One viral post in July 2022 gave it the first thousand customers; a system of paid creators and referral programs kept the growth going.

A tool for people who want to grow an audience on X (then Twitter). It started as a search box over a library of viral tweets, then added a scheduler, automatic direct messages, a contact list, and a language model that proposes tweets and threads in the user's own style. A sister product, Taplio, does the same for LinkedIn.

Two founders shipped eleven products in about four months and kept the one that made money. They sold it on the platform it served, gave an audience owner a share of profits instead of a sponsorship fee, and used a language model to make writing faster, not to replace it. Fifteen months after launch, with about US$1 million a year in revenue, they sold to a larger French software company run by a former schoolmate.

A chat window for AI models that is better than the one the model makers ship: search in old conversations, folders, prompt library, plugins, and any model from OpenAI, Anthropic or Google. You bring your own API key, so TypingMind never pays for the model.

It shipped five days after the ChatGPT API appeared, when the official interface logged people out, typed slowly and had no search. It charged from the first day and raised the price with every update. Then a Team version for companies turned one-time sales into subscriptions.

A web application that turns a song into a music video. The musician uploads an audio file; a feature named Autopilot writes a storyboard, renders each scene with a rented video model and cuts the scenes to the beat. Customers pay a subscription from US$39 a month that includes credits, and buy more credits when they run out.

It began in January 2023 as an easy web interface for animation with Stable Diffusion, when the alternative was an open-source library that only programmers could run. Three months later the founder rebuilt it for one group of customers: musicians, who need a video for every song they release and cannot pay a film crew. He calls this the best decision he made.

You upload about 20 photos of yourself. Photo AI trains a model of your face, and then generates photos of you in any clothes, place or style: headshots, dating photos, product shots. The site calls it firing your photographer.

The founder had posted his revenue in public for ten years and had hundreds of thousands of followers before he shipped it. He launched a cheesy avatar version first, made US$100,000 in ten days, then pivoted to the useful version. Rented GPUs, one PHP file and no employees keep the profit margin above 75%.

A web service that makes a short vertical video from a topic, with a script, a synthetic voice and generated images, and posts it to the customer's TikTok or YouTube account on a fixed schedule, from 3 times a week to twice a day. The customer sets up a series once, and the videos then arrive without more work.

It started in January 2024, when faceless channels were a rising trend and one video took one to two hours of work in four separate tools. The customers were mainly YouTubers, who then promoted the product for a commission, and Facebook ads returned many times their cost. The founder had built two earlier products that passed US$30,000 of MRR.

A web page where a user picks a use case (blog outline, product description, email, ad text), a tone and a language, types a few words, and gets a short text written by GPT-3. The free plan gives a monthly character limit; paid plans remove it. Rytr sells the output of OpenAI's model with a simpler interface and a much lower price than the other AI writing tools of 2021.

It entered an existing market with a lower price (US$29 a month for unlimited use, later US$9) and a simpler interface, sold the first customers through AppSumo, and put all marketing effort into search engine ranking, an affiliate program and a reward for reviews. It reached about US$1 million a year in revenue in seven months with three people, and a competitor bought it 18 months after launch.

The customer picks a topic, a video style and a posting schedule. The service writes a story, edits it into a short video and posts it to the customer's TikTok, YouTube or Instagram account on that schedule. The customer never appears on camera and does not have to edit anything.

It sold the whole job, from the story to the posting, and not only a video editor. One paid thread by a known account on X brought the first customers, and creators who used the product then recommended it to their own audiences. One founder built everything on a no-code platform that he already knew from six failed products, so the first version was cheap and fast to change.

A company connects its website, help center, files or old support tickets. DocsBot turns that material into a chatbot that answers customers or employees with links to the source passages, in a website widget, in Slack, by voice or through an API, and passes the conversation to a person when it cannot answer.

It opened in the week OpenAI released the ChatGPT API, after seven other AI products by the same founder had earned little. It sold to businesses, which stay longer than consumers. The last step to the first million came from higher prices and from removing the cheapest plan.

A web tool that writes marketing text. The user describes a product in a few sentences, picks a type of text (Facebook ad, Google ad, headline, value proposition, blog post, or landing page, the single web page that an advertisement links to) and a language, and gets several drafts written by GPT-3, OpenAI's text model. A document editor has a button that continues a blog post, and a page builder produces a landing page with text, design and code. Each generation costs credits, and the plan sets the number of credits per month.

The founder already sold a small template tool for headlines when OpenAI gave GPT-3 to a first group of developers. He asked OpenAI's chief technology officer for access by email in June 2020, received it, and spent five months rebuilding the tool around the model. When that version came out in December 2020 there were few such tools and he had an audience on X from showing his work in public. He says revenue went from US$1,000 to US$20,000 a month by February 2021. He sold in March 2021, when new competitors appeared every week.

Upload or link a recording, such as a podcast episode, a webinar or a Zoom call, and get a transcript with speakers and timestamps. From that transcript the product writes show notes, newsletters, social posts, blog articles and quotes, and cuts captioned clips, with prompts that the customer can edit. Subscriptions are priced by the hours of recordings transcribed and start at US$19 a month.

Two podcast hosts had the show notes problem themselves and already knew many creators. A lifetime deal on AppSumo brought about 10,000 users and about US$350,000 in the first months, and paid creators and affiliates brought subscribers after that. Three founders with different skills worked for equity, so the company needed no investors.

A web app for LinkedIn posts. It stores what a member knows and how the member writes, suggests topics from posts that do well, writes drafts with the member in a chat, makes 20 images a month, and schedules and publishes posts to a connected LinkedIn account, with statistics and weekly group calls. A Chrome extension saves ideas from other websites.

Three of the four co-founders had LinkedIn audiences, together more than 480,000 followers, made of the people Kleo sells to, and the free extension had already reached tens of thousands of users. When LinkedIn stopped the extension, they sold a rebuilt paid version to that audience first, in limited groups of seats, before any public launch.

A study app that turns a student's own lecture slides, PDFs, notes, videos and lecture recordings into multiple-choice questions, flashcards and exam-style clinical-case questions, gives feedback on each answer, and schedules reviews so that weak topics come back. It runs on the web, iPhone and Android, with a free plan and paid plans.

It shipped within days in reply to a public request for exactly this tool, in January 2023, when AI tools were new and AI directories and their video reviewers sent traffic at almost no cost. It then aimed all marketing at medical students, the heaviest flashcard users, paid student creators to post about it on TikTok and Instagram, and bought Google Ads only while they paid back their cost.

You upload a PDF and ask questions about it in a chat window. The answers come from the text of the document. Paid plans add more uploads, more questions, OCR for scanned pages, a Chrome extension, chat across several PDFs, and an API for developers.

The founder did not build it. He bought a weekend project with no revenue for US$20,000, paid about US$10,000 for the domain pdf.ai, and relaunched it under that name. The domain put the product at the top of Google for the words people were already typing, and a one-time launch deal paid for a developer and a video creator within weeks.

You upload a photo of a room, pick a room type and a style, and about 25 seconds later you get a photorealistic render of the same room redesigned. It also furnishes empty rooms for real estate listings, turns sketches into renders, and makes walk-through videos.

It was the first product of its kind, built in five days in September 2022, a few weeks after the image model it uses was released as open source. The founder already had a large audience from ten years of public revenue reports, so the launch post was enough marketing. Rented GPUs and one person keep costs low. Revenue reached about US$40,000 to US$50,000 a month and has been falling since 2025 as large AI companies and competitors ship the same feature.

You type what you want a spreadsheet to do, in plain words, and it returns the Excel or Google Sheets formula. Started in August 2022 as a one-page site built without code. Since 2024 it is a chat that reads uploaded files and connected data sources and returns charts, tables and reports. Renamed Better Analyst in 2026.

It was the first visible AI tool for a task that 750 million Excel users do, and it appeared three months before ChatGPT. A Reddit post and a TikTok video brought 100,000 visitors in a day. The founder put a paywall on the site when the OpenAI bill reached US$5,000, and 606 people paid in the first month.

A person describes a web application in plain language. Softgen's AI agent writes a Next.js project with a database, user login and payments, shows a live preview, and changes the app when the person gives feedback. The code goes to the user's own GitHub repository.

A technical founder released an early full-stack AI app builder in July 2024, and revenue stayed flat for four months. Then a second person joined who worked only on distribution, and annual recurring revenue grew about 25 times in four months. They sold the product while the growth was visible and kept their company for the next product.

An app for Shopify stores that sends marketing messages on WhatsApp and answers shoppers with an AI assistant trained on the store's catalog: reminders for abandoned carts, campaigns to subscribers, product advice in 96 languages. The store pays a monthly plan plus a charge for the WhatsApp conversations.

After a first product of their own that nobody bought, the founders copied a kind of Shopify app that already earned money, and sold it in France, where few competitors sold it. They found customers only by cold outreach, with tools that cost about US$380 a month. By their account they sold the company seven months after the App Store launch, when sales outside France became hard.

A Mac app that puts many AI models in one chat window and behind one keyboard shortcut that works inside any other Mac app. You connect your own account at OpenAI, Anthropic, Google or another provider, or run a model on your own Mac, so BoltAI never pays for the model. You pay once for the app and get one year of updates.

It appeared in spring 2023, when people used ChatGPT in a browser tab and Mac users had to copy text between the browser and their other apps. The founder showed every step on X, one well-known founder reposted it, and AI directories and the Setapp app subscription brought buyers after that. He raised the price from US$19 to US$79 and kept the app running alone.

A web app and a Chrome extension that write LinkedIn posts. The member picks an industry, a niche and a type of topic, or gives an idea or a voice note, and the AI writes a draft in the member's style; the member edits it and posts it. By 2026 it also showed the best posts of top creators, found trending topics on Reddit, X, Google, Bing and Perplexity, and planned posts in a calendar. It never posted on its own.

The founder had already built one of the largest audiences on LinkedIn by posting about AI every day, so the product had buyers on the day it launched. It sold one plan at about US$60 a month, as a US$2-a-day ghostwriter against US$2,000 to US$3,000 for a human one, and his employees grew their own accounts with it and sold it for a commission.

A company connects My AskAI to the help desk it already uses, such as Intercom or Zendesk, and gives it the help center, the website and past tickets to read. The agent then answers customer questions inside that help desk, or writes a draft as an internal note for a human agent. When it cannot answer, it hands the conversation to a person in the same tool, with a summary.

The founders sold the idea before they built it, and built it with a no-code tool so that one person could change it every day. Then they cut the product down to the one use that brought 70% of the revenue. They placed it inside the help desks that customers already pay for, and priced it below the AI agents that the help-desk vendors sell themselves.

A website where anyone can type a text prompt and get an image from one of many AI models, then share it in a community with daily challenges, chat rooms and streaks. NightCafe trains no models of its own: it rents models from OpenAI, Google, Black Forest Labs and others, and sells credits and subscriptions.

It was already online in 2019, when the only AI art was style transfer. When open-source text-to-image models appeared in mid-2021, it added them within weeks, and a Reddit post sent a crowd to the only simple website that offered them. It then kept the crowd with community features instead of better models.

A web app with more than 150 small writing tools built on OpenAI's GPT-3: business ideas from a 10-second quiz, blog posts, Facebook and Google ads, emails, social media posts, even poems. The user fills a short form and gets the text back in seconds. It sold mostly as a US$59 lifetime deal on AppSumo, next to monthly plans from US$19.

It arrived in December 2020, when GPT-3 access still came through a waitlist and only a few competitors existed, and it was priced at about 80% of their prices on purpose. A lifetime deal on AppSumo put it in front of buyers who try unknown software, and a Facebook Group and an email list kept those buyers coming back.

A web app, a Chrome extension and an MCP server for Amazon sellers. It estimates the revenue, prices, reviews and keyword demand of a product market, matches Amazon products to suppliers on Alibaba, analyzes ads, tracks rankings and drafts listings. Paid plans connect the seller's own Amazon account, so Claude or Codex can answer questions about the seller's sales and ads.

An Amazon seller who could not code built the research tool he needed in 48 hours with Cursor, then offered it to Legacy X, a coaching program for Amazon sellers that he had bought two years earlier. Legacy X took a share of the business, and its students were the customers from the first day. He says it reached US$10,000 a month in 30 days and US$30,000 a month by June 2026.

A website that writes a resume in one recruiter-tested format from an old resume, a LinkedIn profile or answers to questions, with a cover letter writer, mock interviews, a LinkedIn profile rewriter and a job search. Members pay US$99 once or US$39 a month, and only after they finish a resume.

The founder had answered resume questions on Reddit for six years, and his free template had millions of users, so the AI tool launched to people who already trusted his format. It replaced a US$400 one-to-one review with a US$99 product that costs little to run.

A free browser extension for the ChatGPT website that adds folders and subfolders, search in the full chat history, bulk export to TXT, Markdown, JSON and PDF, pinned messages, a prompt library and a tree map of conversation branches. A Pro plan removes the limits. It works inside the user's own ChatGPT account.

It shipped within a week of ChatGPT's release, when ChatGPT had no folders and weak search, and it was free, so it spread through the Chrome Web Store. A daily AI newsletter shown inside the extension turned the users into an audience that sponsors paid to reach, and a Pro plan added subscriptions ten months after launch.

You press a button, talk in any language, and AudioPen returns a short, well-structured text in the style and language you chose, not a word-for-word transcript. It runs on the web, as a phone app, on desktop and as a browser extension. The free plan has short recordings; the paid plan, Prime, is sold for 3 months, 1 year or 2 years, never by the month.

The founder had 10,000 followers on X who watched him build it, so it had 100 paying users two days after a 12-hour hackathon and sold itself by word of mouth after that. A no-code stack kept costs near zero, a lifetime deal whose price rose from US$19 to US$150 funded the first year, and yearly-only pricing cut support work for one person.

An AI writer for an online shop's automated marketing emails. Connected to Klaviyo or another email platform, it writes a different subject line, headline and text for every recipient from the products that person looked at or left in the cart, in the shop's tone, in more than 40 languages, and measures the result against the shop's old email.

Online shops send the same abandoned-cart and viewed-product email to every customer, because writing more versions takes people. A rented language model made one unique email per recipient cheap. Alvas sold this first through a Danish email marketing agency that set it up for its clients, and showed the gains with tests against the shops' old emails.

Upload a podcast episode and get the transcript, show notes, timestamps, a newsletter, social posts, a blog article, short video clips and quote images. The podcaster pays a monthly subscription priced by minutes of audio processed. Media companies and agencies pay custom contracts.

It was built in one week, right after the ChatGPT API appeared, by a podcaster who hated writing his own show notes. Reddit, cold email and a second place on Product Hunt took it to US$10,000 a month in five months. Then the first wave of AI curiosity ended, churn stayed high, and revenue has been flat at about €16,000 a month since 2024.

A company pastes its website address. SiteGPT reads every page, builds a chatbot that answers visitor questions from that content, and puts it on the site. Plans are priced by the number of chatbots, pages and messages. There is no free plan, only a 7-day trial.

It was built in two to three weeks as a side feature for an existing product and launched with a paywall on day one, one month after the ChatGPT API appeared. It reached US$10,000 a month in 25 days, then lost half of it to churn. What kept it alive for three years was cheap customer acquisition: more than 50 free web tools that rank on Google and send visitors to the paid product.

A coach, author or creator uploads books, articles, podcast transcripts and course material. Coachvox turns them into a chat version of that person, which answers the audience in the creator's voice on a website, inside a course or in a members' group, and gives the creator the email address and the transcript of everyone who chats.

The founder sold places from design mockups to people in her own network before the product existed, and her Forbes column brought a quarter of the sign-ups at no cost. It sold creators what a general chatbot did not give them: the contact details of the people who chat, the transcripts, and the clone on their own site with their own brand.

A web form that takes a description of a business idea and returns a long report on its market, customers, competitors, risks and launch steps. In 2023 the text came from hundreds of pre-written prompts sent to OpenAI's ChatGPT models. A later owner still sells it in 2026, rebuilt around live web search and cited sources.

The founders first sold AI reports for many jobs, from lesson plans to travel plans, and kept the one that people paid for: the business idea check. It cost about US$185 to start, so nearly all revenue was profit. An Instagram creator's video in June 2023 brought more than US$10,000 of sales in one week. Six months after launch they sold it through Acquire.com.

A no-code builder for AI support agents that answer from a company's own content: websites, files, Notion pages, YouTube videos and RSS feeds. The agents work in a website widget, Slack, Discord, WhatsApp, Telegram, email, phone calls and an API, on a model that the customer picks from more than 20.

It shipped in March 2023, when connecting ChatGPT to a company's own documents was new, 23 days after the first prototype. The founders posted their progress on Twitter, opened with a waitlist, and well-known early users such as Seth Godin brought attention. Low prices and frequent releases kept it selling after growth slowed in the third month.

An iPhone app for wrestlers. Upload a clip of a practice or a match and the AI returns a score, strengths and weaknesses, drills and strategy notes. It also has drill plans, a technique library, a match tracker, a calorie tracker and a weight-cut mode, and in April 2026 it added Brazilian jiu-jitsu, freestyle and Greco-Roman wrestling. Every feature needs a subscription.

The founder had wrestled in school and knew that wrestlers rarely have an expert to review their film, and in 2025 the App Store had no app like it. The video breakdown can be shown in under 10 seconds, so creators could sell the app in posts that look like training videos, not ads. A no-code builder kept the total spending at about US$1,100.

A web and mobile app for real-estate agents that furnishes, redecorates and enhances property photos with AI, turns them into short videos and 2D floor plans, and publishes them to social networks and Meta ads. Agents pay a monthly subscription that includes credits, and each AI action uses some of them.

The founder knew image AI from data science and chose real-estate agents as customers, because they need attractive photos of every new property, every month. She sold in French first, listed the tool on directory sites, paid affiliates who already reached agents, met agents at real-estate events, and cut cancellations with credits that carry over and yearly plans.

A web app that writes SQL queries from requests in plain English, and explains, fixes and speeds up existing queries, for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, Snowflake, BigQuery and other databases. Paid plans connect to the customer's own database and run read-only queries, also from Claude, ChatGPT and Cursor.

It launched in October 2021 with one narrow promise, write SQL without knowing SQL, on OpenAI's Codex and GPT-3 models and a no-code app builder. It kept its prices low, built a site of more than 700 pages, among them SQL lessons, templates and comparisons, and added what a general chatbot does not have: a live, read-only connection to the customer's database. Its recurring revenue, as the founder reported it, doubled in 2024 to about US$10,000 a month.

A web app that writes marketing text with OpenAI's GPT-3. The customer picks one of more than 40 templates, such as an ad, an article, a blog outline, an email or a product description, types a few details, and gets a draft in seconds, in more than 100 languages. A second tool, the Genius Editor, continues a text in the author's writing style. Plans sell a monthly number of words, from 40,000 words for US$19 a month.

It launched in March 2022, eight months before OpenAI released ChatGPT, and sold GPT-3 text through fixed templates for a monthly fee. A third-party report gives US$14,000 of monthly recurring revenue at its best and US$9,500 by May 2025. In 2026 the founder's own profile listed it at US$4,000, beside his much larger AutoShorts.ai.

An AI note-taking app for speech: record a voice note or upload audio, video or text, and get a transcript, a summary, meeting minutes, an email or a social post. It runs on iPhone, Android, the web and a Mac beta, with links to Notion, Zapier, webhooks and WhatsApp.

It started two months after OpenAI's Whisper API made accurate transcription cheap, and it sold the step after the transcript: a summary, minutes, an email or a post, sent on to Notion, Zapier or WhatsApp. In 2023 it charged by the year, US$99 or US$199.

Three small AI web apps from one founder, run beside his full-time job. Questgen turns text, PDFs, web pages, images or videos into quizzes (multiple choice, true/false, fill in the blank) and exports them in the file formats that school learning systems import. Supermeme.ai, built with two co-founders, turns a sentence into memes: it finds fitting meme templates and writes the captions. AiArtist.io, the newest, makes short motion-graphics videos from text.

Questgen started as free open-source code on GitHub whose README sends readers to questgen.ai, where the paid plans are. Both apps then won search traffic for exact phrases such as "AI meme generator", and Supermeme says it has spent nothing to acquire its users. Costs are low: in June 2022 the founder said his two products were profitable at US$500 and US$100 a month. So a part-time team with no investors can keep them running.

A web tool that turns one topic into a topical map: hundreds of search keywords, found and grouped by AI models into clusters of related articles, so that a blogger or an SEO worker can plan a whole site in minutes instead of hours. It sold a monthly number of credits to bloggers, freelancers and agencies.

The founder built it in about three days to remove the part of blogging he hated, keyword research and content planning. Then he took partners, SEO people who had the audience he did not have, and they promoted it. Revenue reached US$7,000 to US$8,000 a month about eight months after the launch, and he sold the product after he had stopped working on it.

A web app that turns a blog post, an article or any written text into a short video with a generated voice, animated titles and stock images and clips, for YouTube, TikTok, other social networks and the customer's own web pages. You paste a link or write in an editor that looks like a text document, and the app builds the video. Today it also plans and publishes the videos to social media.

Content marketing agencies already had hundreds of articles and wanted video without cameras or editors. The company found them with cold email: for each large prospect it turned a recent post from the prospect's own blog into a video and sent it free, which often started a conversation. About six agencies with large contracts paid most of the first US$6,000 a month.

A web editor that turns a topic, a text, a web page or a YouTube video into a carousel post with several slides for LinkedIn, Instagram or TikTok. The AI writes the slides; the editor sizes the text and keeps the layout fixed, so a person who is not a designer gets a usable post in minutes. It also exports video and PowerPoint.

By the founder's account it was the first carousel maker with an AI writer, at a time when carousel posts were popular on LinkedIn, and it was built in ten days in public, so the launch had an audience. The launch coverage gave the domain backlinks, and search traffic became the largest source of users. Few design choices made it fast for people who are not designers.

A web app that writes and designs a one-page website from a short description. The user typed a few words about a business; the AI wrote the headline and the text, made a logo and illustrations, and filled a page template in about a minute. The page could be shared with a link or downloaded as HTML and CSS code.

It launched in May 2023, when interest in AI tools was at its highest and before Framer, Wix and Webflow had their own AI page generators. It charged from the first day and made about US$8,000 in its first month. Six months after the launch, when sales had stopped growing and the founder no longer cared about the market, he sold it on a marketplace for 2.5 times its trailing-twelve-month figure.