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Orage vs Rainlendar: catalog facts
Orage	Rainlendar
Free Free and open source as part of the Xfce project.	Freemium Lite is free; a Pro licence costs 9.95 EUR.
Linux	Windows, macOS, Linux
Light on resources Uses the standard iCal format with import and export	Calendar and tasks always visible on the desktop Skinnable, with a skin tutorial and API reference
Single user only, no group calendars Linux desktop only	Some features need the paid Pro edition Closed source
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
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.