Tusleap: Revenue, team and how it was built

Team of 2 to 10 · 6 months after launch, revenue falling

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.

Team of 2 to 10 · 20 months after launch, revenue growing

Seven years of research at a Norwegian university produced the method, the training data and the avatar before the company existed. The founder is the professor who led that research, the university licensed the technology to her company, and public bodies that must train staff in child interviews are the customers. The filed accounts show revenue of NOK 816,000 in 2024 and NOK 2,176,042 in 2025, at a loss.

Solo founder · 39 months after launch, revenue falling

It launched in July 2023, when the ChatGPT plugins for PDF stopped at about 300 pages and Myreader took a whole library. It sold a cheap subscription limited by pages and questions, and it got its users from Google: the TrustMRR profile says the business has good SEO and about 30 sign-ups a day, and the site has a page for each kind of reader, from medical students to seminary students, and a free page for each of more than 40 public-domain classics.

Team of 2 to 10 · 12 months after launch, revenue growing

It sells a weekly subscription for a task students repeat before every test, and it charges from the first screen: the App Store reviews complain that the app cannot be used without paying. One small studio ships the same shell, the same legal pages and the same billing stack across six apps, so each new app costs little. The revenue, read from the app's RevenueCat account, reached US$23,480 in its best month and US$174,534 in total within twelve months of launch.

Team of 2 to 10 · 22 months after launch, revenue falling

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.

Solo founder · 13 months after launch, revenue flat

Speaking is the part of a language that learners practice least, because a human partner is expensive or not available. An AI tutor that listens and answers by voice is available at any hour for a fixed subscription. The founder chose search as the way to find learners: the website has about 1,600 pages in ten languages, and TrustMRR, reading the site's Google Search Console account, counted 460,920 Google search impressions in 30 days.

Solo founder · 16 months after launch, revenue falling

Choosing a lure is the question that every new angler has at the water, and a phone camera plus weather data can answer it in seconds. One developer built a narrow app around that single question, put the answer behind a subscription, and promoted it with short videos on TikTok. Sales are highest in the summer fishing months.

Solo founder · 15 months after launch, revenue falling

System design interviews are hard to practise alone, because the value is in the follow-up questions that a senior engineer asks about your design. A language model that can read the diagram and the chat can ask those questions at any hour. The free plan gives unlimited practice, and the Pro plan at US$14 a month sells the analysis, the score and company-specific questions.

Team of 2 to 10 · 67 months after launch, revenue falling

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.

Solo founder · 14 months after launch, revenue falling

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.

Team of 2 to 10 · 32 months after launch, revenue growing

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.

Team of 2 to 10 · 16 months after launch, revenue growing

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.

Solo founder · 25 months after launch, revenue growing

Tradespeople already use WhatsApp all day on the job site, and many write quotes by hand or in a spreadsheet. Tutti puts the office work into that chat, so the customer has nothing new to install or learn. It sends messages through Meta's official WhatsApp Business Platform, which lets one founder run the service without a phone app as the main product.

Team of 2 to 10 · sold 17 months after launch

Four founders, two of whom had built the drinks-delivery start-up Winelivery, looked for a profession that works with a large, fast-changing body of rules and had not yet adopted AI, and chose Italian accountants and labour consultants. They tested a first version with practitioners and sold monthly subscriptions. In October 2025 TeamSystem, an Italian maker of software for accountants, bought the majority of the company; its press release said Normo.ai had €1.3 million of revenue in 2025.

Solo founder · 44 months after launch, revenue falling

A studio portrait needs a photographer, a booking and days of waiting. AI SuitUp sold the same result, a photo for LinkedIn or a résumé, for a one-time price from early 2023, with a money-back guarantee on the larger packs. It narrowed the offer to one use, professional headshots, and then built a landing page for almost every profession and a version for company teams. Stripe records US$648,649 of payments in total, but only US$35,743 of it in the last 12 months, so most of the money came in 2023, 2024 and 2025.

Team of 2 to 10 · 10 months after launch, revenue flat

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.

Team of 2 to 10 · 11 months after launch, revenue falling

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.

Started small, grew after funding · 26 months after launch, revenue growing

Three founders treated each app as an experiment in pricing and paywalls. Lessons from Pixi, the first app, went into Cue. The studio rents the models, does not train them, and spends its effort on design, data and paid user acquisition, which its founders call the three Ds.

Solo founder · 16 months after launch, revenue flat

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.

Team of 2 to 10 · 29 months after launch, revenue flat

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.