Compare software

Signal vs Keet: catalog facts
Signal	Keet
Free Free; developed by a nonprofit funded by grants and donations	Free Free to download and use.
Android, iOS, Windows, macOS, Linux	Windows, macOS, Linux, Android, iOS
End-to-end encryption on every message and call using the open source Signal Protocol No ads, affiliate marketers or tracking	No phone number or email needed to sign up Messages, calls and files go directly between peers with end-to-end encryption
Requires a phone number that can receive an SMS or phone call to register Desktop app requires Signal to be installed on a phone first	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
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

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