Compare software

Session vs Keybase: catalog facts
Session	Keybase
Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.	Free Free to install and use.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS
No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network	End-to-end encrypted chat and file storage in one app Teams can be created with anyone, including families and clubs
Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger	Linking public identities from other sites may not suit people who want anonymity Little recent public detail about new features or development pace
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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