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