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Tinfoil Chat vs Session: catalog facts
Tinfoil Chat	Session
Free Free and open source.	Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.
Linux, Command line	Windows, macOS, Linux, Android, iOS
Uses onion routing Designed around a high-assurance hardware architecture	No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network
Designed for users with complex threat models. The repository lists Qubes OS and Tails.	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 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 October 8, 2026	Official website Full listing and sources Checked September 21, 2026

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