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Kairos vs Orage: catalog facts
Kairos	Orage
Free Free and open source under the GPL-3.0 or later licence.	Free Free and open source as part of the Xfce project.
Linux	Linux
Designed for touch input on tablets Works well alongside tiling window managers	Light on resources Uses the standard iCal format with import and export
Young project with little documentation Linux only	Single user only, no group calendars Linux desktop only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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