Preuve AI: Revenue, team and how it was built

Team of 2 to 10 · 45 months after launch, revenue falling

Said US$19K a monthRecords US$9.6K in JulyDid not hold

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.

Solo founder · 29 months after launch, revenue falling

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.

Solo founder · 36 months after launch, revenue flat

The first customers came from a lifetime-deal sale on AppSumo, at a time when the product had no AI at all. That gave about a thousand users, word of mouth and a Powered by Guidejar link on every free guide. From April 2024 the founder sold subscriptions instead, and added AI writing, voiceover and translation to the paid plans, metered in credits.

Team of 2 to 10 · 24 months after launch, revenue falling

It sold a simple promise, a finished PowerPoint file from one sentence, at a low price: in 2024 and the first half of 2025 the archived pricing showed unlimited decks for US$9.99 a month. Stripe payments read by TrustMRR add up to US$60,120 since the start. The verified monthly figures also show a steady fall after November 2025, when the plans had moved from unlimited use to slide credits, and the founder put the business up for sale.

Team of 2 to 10 · 47 months after launch, revenue falling

It put a language model inside Google Sheets from November 2022, and Google's marketplace brought more than 201,000 installs. Few installs paid: US$52,136 of verified revenue in 47 months is about US$0.26 per install. Its most important result may be indirect: a request for a pitch deck for SheetAI led the founder to build MagicSlides, which by its own verified data earned about 14 times as much. SheetAI's own revenue is now falling, and Google has offered a similar AI function inside Sheets since June 2025.

Solo founder · 15 months after launch, revenue falling

It does the work in the cells instead of explaining what to paste, and it works in the Excel that people already have, without a Microsoft Copilot license. The founder already taught Excel to a large French audience. The AI models are bought by the request from OpenAI and Anthropic, so one person could build and run it.

Solo founder · 15 months after launch, revenue falling

Many recipes now live in short videos, where the ingredients are spoken or shown and never written down. A model that can watch a video and write out a structured recipe turned an old app category, the recipe keeper, into something that works for these videos. One developer built it on rented models and sells it through the app stores as a subscription.

Team of 2 to 10 · 50 months after launch, revenue falling

It was online in August 2022, months before ChatGPT made chat with language models common, so it was early to a simple and frequent need: remembering spreadsheet formula syntax. The same need is now served free by general chat assistants, and Sheeter's Stripe revenue has fallen every month for a year.

Solo founder · 15 months after launch, revenue falling

Many schedules still arrive as pictures: a school's monthly calendar, a sports timetable, a concert ticket, a flyer. Typing them in by hand is slow, and older text-recognition apps read the letters but not the meaning. A large language model that reads images can turn a whole timetable into separate events in seconds, so one developer could sell a small, clear tool built on Google's Gemini model.

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, 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.

Solo founder · 7 months after launch, revenue growing

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.

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.

Solo founder · 25 months after launch, revenue falling

A normal chat window is one long thread, and a side question either breaks that thread or is never asked. The founder sold a fix for that one problem to heavy AI users. The subscription version earned little; the one-time licence that followed sold to many buyers, and Stripe data on TrustMRR shows US$131,070 in total. Sales then fell, because each one-time buyer pays only once.

Team of 2 to 10 · sold 27 months after launch

Said over US$350K in totalRecords US$348.5K on StripeHeld

It entered a market that already had about ten AI headshot sites, at a lower price, and won customers through Google search and affiliate writers instead of ads. A US$4,000 order from one company showed that team headshots were the better sale. The founders sold in 2025, when a general chat model began to make similar images.

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.

Team of 2 to 10 · 7 months after launch, revenue flat

The founders said that most new users came from search: their blog brought over 40% of new users and AI answers (ChatGPT and Google's AI) another 28%. Short slideshows on four TikTok accounts brought views but few sign-ups, about one per 10,000 views. The product removes the main limit of earlier learning apps, a fixed catalog of courses, because the model writes a new course for each request.

Solo founder · 9 months after launch, revenue growing

Candidates for consulting jobs need dozens of practice cases, and the usual options are a free peer partner of uneven quality or a coach who charges US$100 to US$300 an hour. A language model can play the interviewer at any hour for US$49 a month. The founder wrote that the customers come from search: the sitemap lists 596 blog pages written for Google and for AI assistants.