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Anonomi Messenger vs Session: catalog facts
Anonomi Messenger	Session
Free Free and open source under the GPL 3.0 or later.	Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.
Android	Windows, macOS, Linux, Android, iOS
No central servers to seize or monitor Routes traffic through Tor	No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network
Android only Small, young project with a limited user base	Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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