Compare software

Siskin IM vs Conversations: catalog facts
Siskin IM	Conversations
Free Free; source code is published on GitHub.	Freemium Free and open source. The Google Play build is a paid way to support development.
iOS	Android
OMEMO end-to-end encryption Audio and video calls over XMPP	Federated protocol, so you choose or run the server OMEMO encryption with a mature, well-reviewed implementation
iPhone and iPad only Needs an XMPP account on a server	Feature availability depends on what the chosen server supports Paid on Google Play, though free builds exist on F-Droid
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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