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Berty vs Cwtch: catalog facts
Berty	Cwtch
Free Free and open source, developed by a non-profit.	Free The open-source application is available without a license fee.
Android, iOS	Windows, macOS, Linux, Android
No central server; messages travel peer to peer Designed to work offline or on restricted networks	Designed specifically to resist metadata collection, not just message reading No account, phone number or email required
Developers say it is not yet ready for high-risk use Small team and a smaller user base than mainstream messengers	Tor routing makes delivery slow and requires both parties online Small project with a limited feature set
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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