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Nextcloud Calendar vs Linwood Flow: catalog facts
Nextcloud Calendar	Linwood Flow
Free Free app for Nextcloud servers.	Free Free and open source under the AGPL 3.0.
Web, Self-hosted	Windows, Linux, Android, Web
Calendars stay on your own server CalDAV sync with standard clients	You decide where your data is stored Manages events, groups, places and people in one app
Requires a running Nextcloud server Not a standalone app	Developers state it is not ready for production use Nightly builds can be unstable
Self-hosted	Downloadable app, Web application
Open source	Open source
License not stated	License: AGPL-3.0
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.