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Fossify CalendarKashCal
Free

Free and open source with no ads.

 Free

Free and open source with no ads.

Android Android
  • No ads or tracking
  • Syncs with Google, Outlook, Nextcloud and Exchange calendars
  • iCloud calendar sync on Android
  • Works with Nextcloud, Fastmail and other CalDAV servers
  • Android only
  • Sync relies on accounts already set up on the device
  • Android only
  • Calendar only, no task or contact management in the app
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: Apache-2.0
No account needed No account needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked October 2, 2026

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