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SAMA vs MongooseIM: catalog facts
SAMA	MongooseIM
Free Free and open source under the GPL-3.0 licence.	Free Free and open source.
Web, Self-hosted	Self-hosted
Server, web client and Flutter client are all open source End-to-end encryption and clustering included	Clusters across multiple machines Fault tolerant Erlang design
Uses its own protocol, so it does not interoperate with XMPP or Matrix Small project with a limited community	Aimed at large installations, which adds complexity for small setups Requires familiarity with server and cluster administration
Web application, Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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