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jtx BoardCfait
Free

Free and open source under the GPL-3.0 licence; donations accepted.

 Free

Free and open source under the GPL-3.0-only licence.

Android Windows, Linux, Android
  • Journals, notes and tasks in one app, linkable to each other
  • Standard iCalendar format avoids lock-in
  • Works with standard CalDAV servers
  • Cross-platform across desktop and Android
  • Sync requires the separate DAVx5 or kSync app
  • Android only
  • Needs a CalDAV server for syncing
  • Little documentation on the developer's homepage
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: GPL-3.0-only
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.