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SAMA vs Databag: catalog facts
SAMA	Databag
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the Apache-2.0 licence.
Web, Self-hosted	Android, Web, Self-hosted
Server, web client and Flutter client are all open source End-to-end encryption and clustering included	Low hosting resource use Federation between separate server nodes
Uses its own protocol, so it does not interoperate with XMPP or Matrix Small project with a limited community	Needs your own server to run Smaller user base than mainstream messengers
Web application, Self-hosted	Downloadable app, Web application, Self-hosted
Open source	Open source
License: GPL-3.0	License: Apache-2.0
Not stated if an account is needed	Account 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 2, 2026

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