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0xchat vs Jami: catalog facts
0xchat	Jami
Free The homepage does not list any price or paid tier.	Free Free software under the GPLv3 or later. A GNU project with no paid tier.
Android, iOS	Windows, macOS, Linux, Android
No phone number or email address needed, only a Nostr private key End-to-end encrypted direct messages and private groups	Completely peer to peer, with no server relaying data between users No phone number or email needed to create an account
Losing the private key means losing the identity Contacts need a Nostr client to reach you	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
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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