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SimpleX Chat vs Jami: catalog facts
SimpleX Chat	Jami
Free Free and open source under the AGPL 3.0. The company is funded by investment and…	Free Free software under the GPLv3 or later. A GNU project with no paid tier.
Windows, macOS, Linux, Android, iOS, Command line	Windows, macOS, Linux, Android
No user identifier of any kind, so conversations cannot be correlated by account Double ratchet encryption with an additional layer for the relay servers	Completely peer to peer, with no server relaying data between users No phone number or email needed to create an account
Connecting means exchanging a link or QR code in person or elsewhere No contact list means a lost device is a lost set of conversations unless backed up	Peer-to-peer delivery means messages to an offline device wait until it reconnects Connection reliability varies more than with a server-relayed service
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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