HabitFlow

During my internship I read Atomic Habits, and the habit tracker in that book stuck with me: a simple grid where every day you show up earns a check. I wanted exactly that on my laptop and could not find an app that did it without turning it into a chore, so I built it myself in about a week.

HabitFlow was small but it was a real product. Accounts, unlimited habits, monthly goals, history, the whole grid. I priced it the way I wish more tools were priced: pay once, use forever. Nobody needs a subscription for a habit grid. The landing page opened with the pitch I built it on: stop procrastinating, start improving.

I built every piece myself that week: auth, payments, the database, the emails. And then I used it daily for months, which is the only metric I really cared about. The site is offline now, but the code is public.