Compare software

Keybase vs Session: catalog facts
Keybase	Session
Free Free to install 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
End-to-end encrypted chat and file storage in one app Teams can be created with anyone, including families and clubs	No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network
Linking public identities from other sites may not suit people who want anonymity Little recent public detail about new features or development pace	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
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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