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Session vs Tinfoil Chat: catalog facts
Session	Tinfoil Chat
Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.	Free Free and open source.
Windows, macOS, Linux, Android, iOS	Linux, Command line
No phone number or email needed; the account is a random ID Onion routing hides your address from recipients and from the network	Uses onion routing Designed around a high-assurance hardware architecture
Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger	Designed for users with complex threat models. The repository lists Qubes OS and Tails.
Downloadable app	Downloadable app
Open source	Open 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 October 8, 2026

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