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Dino vs Chatty: catalog facts
Dino	Chatty
Free Free and open source under the GPL.	Free Free and open source under the GPLv3.
Linux	Linux
Clean desktop client for a federated protocol with OMEMO encryption Supports calls and file transfer, not only text	SMS and MMS through the phone modem Matrix and XMPP in the same app
Linux focused; other platforms need third-party builds Behaviour depends on the server's feature support	Linux only XMPP support is optional and depends on libpurple
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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