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Cwtch vs Night Drop: catalog facts
Cwtch	Night Drop
Free The open-source application is available without a license fee.	Free Free and open source under the AGPL-3.0 licence.
Windows, macOS, Linux, Android	Android
Designed specifically to resist metadata collection, not just message reading No account, phone number or email required	No phone number, email or account; identity is a local keypair End-to-end encrypted messages sent peer to peer over Tor
Tor routing makes delivery slow and requires both parties online Small project with a limited feature set	One-to-one chats only, no groups New project with a small user base
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: AGPL-3.0-or-later
Not stated if an account is needed	No account 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.