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Cwtch vs Tox: catalog facts
Cwtch	Tox
Free The open-source application is available without a license fee.	Free Free and open source under GPL-3.0, with no ads or paid features.
Windows, macOS, Linux, Android	Self-hosted
Designed specifically to resist metadata collection, not just message reading No account, phone number or email required	No central servers that can be shut down or asked to hand over data Encrypted text, voice, video, screen sharing and file transfers
Tor routing makes delivery slow and requires both parties online Small project with a limited feature set	Core library has not been independently audited for cryptography Security model is not yet fully specified
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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