OpenHabitTracker

OpenHabitTracker combines Markdown notes, scheduled tasks with checklists and timers, and habits that are measured by how overdue they are rather than by streaks. Lists can be searched, filtered by date, category and priority, and sorted separately for each type, and weekly statistics and charts show how habits are going.

There are no accounts, ads or in-app purchases; data stays on the device and can sync to a server you host yourself. Data can be imported and exported as JSON, YAML, TSV or Markdown. The Mac version is distributed through the Mac App Store, alongside Windows, Linux, mobile and web builds.