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Sable vs Commet: catalog facts
Sable	Commet
Free Free and open source under the AGPL-3.0.	Free Free, funded by donations, with source code on GitHub.
Linux, Web	Windows, Linux, Android, Web
Builds on Cinny with many extra features Usable in the browser or as a Linux app	Several Matrix accounts logged in at the same time Voice channels and one-to-one calls
In constant development, so features change often Requires a Matrix account	No macOS or iOS app listed Needs a Matrix account
Downloadable app, Web application	Downloadable app, Web application
Open source	Open source
License: AGPL-3.0-only	License not stated
Account needed	Account needed
Needs internet	Needs internet
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.