Health and appearance

Team of 2 to 10 · 8 months after launch, revenue growing

It entered a crowded category in March 2025 with paid advertising instead of a personal audience, and it treated the economics of each ad channel as the product to optimize. Cheaper attribution let it test low-cost traffic, and weekly advances on App Store payouts let it put each week's earnings back into ads within days instead of 45. Adapty, the company whose software runs the app's subscriptions, published the figures under its own name.

Solo founder · sold 5 months after launch

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.

Solo founder · 14 months after launch, revenue falling

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.

Team of 2 to 10 · 5 months after launch, revenue growing

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.

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

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.

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

People who plan a haircut or a new colour cannot see the result before the salon has done it. The app shows it on the user's own photo in seconds, using Google's Gemini model to analyse the hair and fal.ai to generate the image, as its privacy policy states. Revenue was close to zero until March 2026; in April 2026 the seller shipped a redesigned onboarding, a new paywall, a coin system and translations, and from then revenue rose every month, to US$17,882 in October 2026 up to 26 October, as TrustMRR reads it from the billing account.

Team of 2 to 10 · 19 months after launch, revenue falling

It turns a label that most shoppers cannot read into one personal number, for diets that a general calorie app does not cover: low FODMAP, seed-oil-free, gluten-free, vegan. The store page says that analysis needs a subscription, so every active user pays. Verified revenue reached US$23,122 in its best month, February 2026, and US$178,939 in total, read from the app's billing account.

Team of 2 to 10 · 21 months after launch, revenue falling

Personal colour analysis is a paid service that people book with a human consultant; the app does a version of it from one selfie in about 30 seconds, for the price of an app subscription. The seller's TrustMRR profile says that the growth came from Meta advertising in Turkey alone, and more than nine in ten of the app's App Store ratings are from the Turkish store. The RevenueCat account that TrustMRR reads shows US$172,972 in the twelve months to 25 October 2026, but also a fall of more than half in recurring revenue in the last month.

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

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.

Team of 2 to 10 · 26 months after launch, revenue falling

Many people own enough clothes and still do not know what to wear, and a screenshot of a look they like does not tell them how it would look on them or what in their closet goes with it. Aesty answers both questions with image models from OpenAI and Google, and sells the answer by the week, the month or the year. TrustMRR, reading the company's RevenueCat account, showed US$67,971 of revenue in total and US$10,064 of monthly recurring revenue from 688 subscriptions at the last sync on 22 September 2026.

Solo founder · 7 months after launch, revenue falling

It needs nothing but a phone: the camera replaces the sensors, the bag and the coach that earlier fitness products had to supply. The game layer of XP, levels and 1v1 matches gives users a reason to come back. The seller lists TikTok, TikTok Ads and Instagram as its marketing channels.

Solo founder · 20 months after launch, revenue flat

It entered a crowded category, habit trackers, with a free tracker and a paid AI coach on top. The founder shipped 83 versions in 21 months, so the product changed every week or two. Many buyers pay for a year at once, and whatsthe.app read that the money in the last 28 days was almost twice the monthly recurring revenue.

Solo founder · 45 months after launch, revenue falling

It launched in January 2023 with a name that people were already typing into search engines, and the company wrote that more than 35,000 people used it in its first two weeks. One person then kept adding features, languages and more than 2,000 recipe articles for search, and moved the app from recipe ideas toward calorie tracking, which people pay for every month.

Solo founder · 3 months after launch, revenue falling

Young players want to improve but rarely have a coach who plans their training or watches their games. The app sells that as a subscription for a few dollars a week and dresses it as a game with XP and ranks. TrustMRR, which read the app's revenue through a RevenueCat API key, shows US$13,188 of revenue from June to 16 September 2026 and US$2,246 of monthly recurring revenue from 375 subscriptions at that date, about US$6 a subscription.

Team of 2 to 10 · sold 19 months after launch

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.

Solo founder · 12 months after launch, revenue falling

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.

Team of 2 to 10 · 5 months after launch, revenue growing

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.

Solo founder · 57 months after launch

The founder says that in 2021 his app stopped growing, so he studied the sign-up and payment screens of bigger apps for six months and rebuilt the product from scratch three times. The new version writes the plan for the user. He says that it let his Facebook and TikTok ads pay for themselves on the day they ran, so he could buy users without outside money.

Solo founder · 10 months after launch, revenue growing

The founder, a marketer who is not a programmer, said in an August 2026 interview that he built the first working version in two weeks with the AI code editor Cursor, launched in June 2025, and reached about US$20,000 a month in four months with paid ads, which cost less in Israel than in the United States. He then gave two well-known Israeli fitness influencers half of the revenue from Israel instead of paying them per post, and said that this took the app to over US$81,000 in April 2026.

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

Steve Hoyek said he had lost 45 kilos by counting calories in many apps and found them too complex, so the two co-founders built the simplest one they could. The founder said on Starter Story that iPhone ads cost about four times as much per view as Android ads, while iPhone users convert only about 20% better. With no outside money, they put their ads on Android, mostly Google's app campaigns, and the founder said about 80% of users and revenue came from Android.

Team of 2 to 10 · 23 months after launch

Two founders with consumer-app experience built a prototype in under a week, launched a free web app in July 2023, kept it a web app for twelve months, and added native phone apps in August 2024 once the product had its users. It positions itself as a companion between therapy sessions, not as therapy, and gets recommended by therapists and coaches. The company said in June 2025 that 7,500 paying customers came from that positioning and a long-term memory system that chat models did not offer.

Solo founder · 5 months after launch

The founder said in September 2024 that the app does not sell AI; it sells a feeling, and the animation that plays when the model finishes its work is the moment people decide to pay. It charged from the first day, spent nothing on advertising, gave a free month to users who posted about it on Xiaohongshu, and reached the top three of Apple's Food and Drink chart in China within weeks.