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Nextcloud Calendar vs Teamup Calendar: catalog facts
Nextcloud Calendar	Teamup Calendar
Free Free app for Nextcloud servers.	Freemium A calendar can be created from the homepage; business features are sold as plans.
Web, Self-hosted	Android, Web
Calendars stay on your own server CalDAV sync with standard clients	Twelve views including timeline, scheduler and table Calendars can be shared across organizations
Requires a running Nextcloud server Not a standalone app	Hosted service with data on Teamup's servers Aimed mainly at business use
Self-hosted	Downloadable app, Web application, Hosted service
Open source	Closed source
License not stated	License not stated
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 1, 2026

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