Receipt AI: Product, team and how it was built

Solo founder · sold 17 months after launch

It solved one narrow and repeated task that every company has at the end of each quarter. The task is to find all invoices and give them to the accountant. It read the invoices where they already were, in the inbox and on supplier websites, instead of asking people to forward them. It also let customers write their own checking rules in plain language. Stripe data shows monthly revenue rising from US$12,631 in November 2025 to US$18,970 in January 2026.

Team of 2 to 10 · 33 months after launch, revenue falling

The product goes where the customers already are. A shop owner does not install a new app or learn accounting software. Instead, the owner writes into a chat. The founder wrote of having worked as a data scientist at a microloan company and of running a café. So the founder knew both the bookkeeping problem and the reason banks ask for records.

Solo founder · 19 months after launch, revenue growing

The founder, a digital nomad, had collected more than 1,000 receipts from many countries to track his own spending. He built the app for that use. It reads every line item instead of only the total, which matters for travellers with receipts in foreign scripts and currencies. Small, steady releases widened the market: 25 versions between 21 January and late October 2026. A translation of the app into 52 languages did the same, without a team.

Solo founder · 12 months after launch, revenue growing

It serves one narrow job, turning a statement PDF into clean rows, and it grew through pages written for single banks. The founder wrote in March 2026 that almost all clicks come through those bank pages. A free tier and a small credit pack let people try it before they subscribe.

Solo founder · 23 months after launch, revenue falling

It does one narrow job and returns the same fields for every document. A developer or an automation builder can call it without writing a parser. It sells credits by the page, and a credit pack needs no subscription. Revenue is small, and the verified record shows it falling from its January 2026 peak.

Team of 2 to 10 · 24 months after launch

It picked work that large regulated companies had failed to automate for years and that tolerates almost no errors. Instead of letting a model decide each step, it turns the expert's procedure into fixed program steps. This makes the result predictable and cheap to run. A few large customers, sold directly, can pay for a very small team.

Solo founder · 27 months after launch, revenue growing

Said US$245K a monthRecords US$263K MRRSaid less than the records

The founder took a twenty-year-old product category with no open-source entry and open-sourced all of it. This 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. Agents need an API-first scheduler and keep paying because they post without human effort.

Team of 2 to 10 · 41 months after launch, revenue falling

It is a small business with honest, payment-processor-verified numbers. It made US$18,627 of revenue in total over about three years, but only US$268 in the last 30 days. On 1 November 2026 the team listed it for sale at US$7,000 because, in the seller's words, the team is moving on. The page shows what a small AI writing tool can earn in a crowded market, and how revenue behaves after the first years.

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

It began in January 2023 as an easy web interface for animation with Stable Diffusion. At that time 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. They need a video for every song they release and cannot pay a film crew. He calls this the best decision he made.

Solo founder · 33 months after launch, revenue growing

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.

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, and collected early users and feature requests through lifetime deals on AppSumo in 2024. In 2025 it grew with advertising and paywall tests measured in Adapty's subscription data.

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 · 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. It uses 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. 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. The diets are ones 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.