Compare software

Nextcloud Calendar vs Horde Groupware: catalog facts
Nextcloud Calendar	Horde Groupware
Free Free app for Nextcloud servers.	Free Free and open source with no paid tier.
Web, Self-hosted	Web, Self-hosted
Calendars stay on your own server CalDAV sync with standard clients	Full groupware suite beyond mail, including tasks, notes and time tracking CalDAV, CardDAV and ActiveSync sync
Requires a running Nextcloud server Not a standalone app	Requires running and maintaining a PHP server Older codebase with a long history of security fixes to track
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: LGPL/GPL
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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