Compare software

EteSyncXandikos
Freemium

The hosted service is paid after a free trial; running your own server is free.

 Free

Free and open source under the GPL-3.0 licence.

Android, iOS, Web, Self-hosted Linux, Self-hosted
  • Zero-knowledge end-to-end encryption
  • Works with existing contact and calendar apps
  • Git-backed storage with change history
  • Broad, documented standards coverage
  • Hosted service requires a paid plan after the trial
  • Desktop apps need the separate DAV bridge
  • No built-in web interface for managing calendars
  • WebDAV LOCK operations not implemented
Downloadable app, Web application, Self-hosted, Hosted service Self-hosted
Open source Open source
License not stated License: GPL-3.0
Account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

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