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Keet vs Berty: catalog facts
Keet	Berty
Free Free to download and use.	Free Free and open source, developed by a non-profit.
Windows, macOS, Linux, Android, iOS	Android, iOS
No phone number or email needed to sign up Messages, calls and files go directly between peers with end-to-end encryption	No central server; messages travel peer to peer Designed to work offline or on restricted networks
Losing the 24-word seed phrase can mean losing access to your identity Peer-to-peer design depends on participants' devices rather than a server	Developers say it is not yet ready for high-risk use Small team and a smaller user base than mainstream messengers
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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