QA.tech: Product, team and how it was built

Started small, grew after funding · sold 11 months after launch

Its founders wrote some of the methods that the industry already used to run models cheaply, such as AWQ for 4-bit weights. They turned that research into a paid serving API, proved the speed on a public benchmark, and partnered with a cloud company that needed exactly that speed. Eleven months after its first public post, the partner agreed to buy it.

Solo founder · 2 months after launch, revenue flat

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.

Solo founder · 12 months after launch, revenue falling

It launched in October 2025, when Anthropic's Claude Code had made skills, slash commands and subagents a normal way to steer a coding agent, and when most developers were still writing their own. A founder who presents themself as a CTO with 18 years of experience sold a tested set as a one-time purchase with a money-back promise. Verified revenue reached US$16,040 in March 2026 and US$82,195 in total, but it fell to under US$2,000 a month by September 2026.

Solo founder · 4 months after launch, revenue falling

Said over US$36K in a monthRecords US$39.6K by end of JulyHeld

It turned a new working habit, running several AI coding agents at the same time, into a native Mac app with voice control and a strong visual style, and it charged once instead of every month. The founder sold it to his own audience through daily live streams, X and a Discord community. Stripe recorded more than three quarters of the revenue in the first seven weeks.

Solo founder · 6 months after launch, revenue growing

The compression engine already existed as a free, open-source Python tool, but it was hard to install. Garm Lucassen packaged it into a desktop app that installs with a double click, connects the coding agents by itself and removes its changes when it quits. The engine's creator suggested that he build it and keep the Headroom name. Developers who hit the usage limits of their AI plans pay a small monthly price to make those limits last longer.

Solo founder · 8 months after launch, revenue flat

AI agents that run for hours or days need an address that people can write back to, and a normal personal mailbox needs a browser login and OAuth consent screens that a program cannot click through. Robotomail sells a mailbox that a program can create and read without a person. It started in March 2026 and connects to Claude, Codex, Cursor and other agents through MCP, an API or a command-line program.

Team of 2 to 10 · 14 months after launch, revenue growing

Johnny Siu had led tenancy services at Goodlord, a UK rental software company, and saw property teams spend their days on the same messages. Antler's partner wrote in October 2024 that 87% of tasks in the industry are repetitive and low-skill. Tenants already wrote on WhatsApp, so an AI that answers there, inside the operator's own policies, saves staff time without asking the operator to change systems.

Solo founder · 39 months after launch

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.

Team of 2 to 10 · 21 months after launch

One founder had worked as a corporate lawyer and the team sold directly to law firms and banks that it already knew. The product was built on Indian court material, which global tools cover less well. Customers made it part of daily work: when the platform went down for maintenance, users called and messaged the team to ask when it would return.

Team of 2 to 10 · 23 months after launch, revenue growing

The first version was an AI copilot for DevOps engineers, who could build their own agents. The founders moved the product to non-technical teams that answer the same questions all day, started every customer with one small use (repeated questions in Slack), and added a higher-priced plan when power users asked for more agents. The founder said in an interview of 17 October 2025, as quoted by SoFarBot, that this took the company from US$100,000 to US$400,000 in annual recurring revenue.