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Session vs Quicall: catalog facts
Session	Quicall
Free Free and open source under the GPL 3.0, run by the Session Technology Foundation.	Free Free to download, with source published under the AGPL.
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	Chat, voice and video calls in one app Clients for mobile and desktop platforms
Losing your recovery phrase means losing the account with no reset Delivery can be slower than a centralised messenger	Branding is inconsistent across the website, app and repository Small project with little public documentation
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: AGPL-3.0-or-later
No account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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