Compare software

Keet vs Session: catalog facts
Keet	Session
Free Free to download and use.	Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS
No phone number or email needed to sign up Messages, calls and files go directly between peers with end-to-end encryption	No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network
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	Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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