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Nextcloud Calendar vs DAViCal: catalog facts
Nextcloud Calendar	DAViCal
Free Free app for Nextcloud servers.	Free Free software under the GNU General Public License.
Web, Self-hosted	Linux, Self-hosted
Calendars stay on your own server CalDAV sync with standard clients	Calendar delegation and shared access between users Free/busy scheduling for meetings
Requires a running Nextcloud server Not a standalone app	Requires PostgreSQL and a PHP web server Setup is more involved than lighter CalDAV servers
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: GPL-2.0
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 October 2, 2026

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