Kreditožrouti is a course scheduler for students at the Prague University of Economics and Business. It scrapes public InSIS course data and puts a faster, clearer layer of search and scheduling on top, so a student can close a gap in their timetable in seconds instead of clicking through the university system.
It was never a startup, and the metrics are modest on purpose: a few hundred students, a handful of them every day, found mostly through Discord, Facebook and word of mouth. It is a tool that quietly saves a few students their semester, every day. With both of my client engagements now finished, it is also the one thing on my record that is live, maintained, and still gaining users, which is exactly why it matters.