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Conversations vs Siskin IM: catalog facts
Conversations	Siskin IM
Freemium Free and open source. The Google Play build is a paid way to support development.	Free Free; source code is published on GitHub.
Android	iOS
Federated protocol, so you choose or run the server OMEMO encryption with a mature, well-reviewed implementation	OMEMO end-to-end encryption Audio and video calls over XMPP
Feature availability depends on what the chosen server supports Paid on Google Play, though free builds exist on F-Droid	iPhone and iPad only Needs an XMPP account on a server
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	Account 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.