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Movim vs Psi: catalog facts
Movim	Psi
Free Free and open source under the AGPL-3.0, funded by donations.	Free Free and open source under the GNU General Public License.
Web, Self-hosted	Windows, macOS, Linux
Uses standard XMPP and talks to other XMPP clients Chat, feeds and video calls in one web interface	OMEMO, OTR and OpenPGP encryption via plugins Very flexible interface with multi-window and all-in-one modes
Self-hosting needs PostgreSQL and some setup Largely maintained by one developer	Last tagged release dates from 2020 Aimed at experienced users rather than newcomers
Web application, Self-hosted	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL
Account 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 September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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