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Eventix vs Kairos: catalog facts
Eventix	Kairos
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0 or later licence.
Linux	Linux
Handles both events and tasks Syncs with CalDAV and Microsoft 365 (Exchange)	Designed for touch input on tablets Works well alongside tiling window managers
Linux only Small project with few users	Young project with little documentation Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
No 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 1, 2026	Official website Full listing and sources Checked October 1, 2026

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