Check! — a minimalist habit tracker

Most habit trackers suffer from feature bloat: mood sliders, journals, gamification. The more you have to tap through, the sooner people quit. We wanted a tool that does one thing honestly: it records whether, on a given day, you did what you promised yourself.

Check! lets you tick off each tracked item exactly once a day — that limit is deliberate, because it keeps the data honest. Every item has a goal (300 days by default, configurable from 30-day sprints to open-ended streaks), a last-30-days chart and a progress bar. A missed day can be filled in retroactively up to 30 days back — so a single oversight doesn't break your streak. Items are organized with tags, filters and drag-and-drop, and the daily stats view shows your consistency across all habits at once. The system runs on two platforms sharing the same account and data: a Flutter mobile app and a full web app (PWA) at dailycheckapp.com, synced through Firebase.

The app is available on Google Play and as a full-featured web version at dailycheckapp.com — the same habits, goals and history on your phone and in the browser.