Open-source habit trackers

4 habit trackers whose code is public under an OSI-approved license, rated for privacy with evidence. Picks first, then by score.

1. Beaver Habit Tracker Grade B

   Open source web app for tracking daily habits without goals or streak targets, available as a paid hosted service or self-hosted with Docker.

   BSD-3-Clause. Source code

2. Loop Habit Tracker Grade B

   Open source Android app for tracking habits with reminders, charts and statistics. Data is stored only on the device.

   GPL-3.0. Source code

3. OpenHabitTracker Grade D

   Open source habit tracker with notes and tasks for web, desktop and mobile. Data stays on the device, with optional sync through a self-hosted Docker server and no account required.

   GPL-3.0. Source code

4. Habitica Grade F

   Habit and task tracker that presents habits, dailies and to-dos as a role-playing game, with avatars, rewards and group challenges. Run by HabitRPG, Inc.

   GPL-3.0 for the server, web app and mobile apps. Source code

Compare all 5 habit trackers, open source or not.