Habit Tracker

Build lasting habits with daily check-offs and streaks. Every check-off is a vote for the person you want to become. No account needed — habits you track here live on this device. Sign in to keep them safe and continue from anywhere.

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How it's built

  • Pattern: Task & Work archetype — a habit is an ActivityPlan; each check-off is an instance in an append-only log with a one-per-day database invariant.
  • Rules: streaks are a pure function of the log and the frequency rule — weekdays bridge weekends, weekly counts ISO weeks, and an unchecked today never breaks the run.
  • Frontend: the screen renders from a discriminated union, same as the Pomodoro timer.
Habit Tracker — stop.procrastin.ar