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

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