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Pidgin vs Psi: catalog facts
Pidgin	Psi
Free Free and open source under the GPL. The project states it is free and contains no ads.	Free Free and open source under the GNU General Public License.
Windows, macOS, Linux	Windows, macOS, Linux
Signs in to several chat networks at once from one window XMPP, IRC, Bonjour, Gadu-Gadu, GroupWise, Sametime, SILC, SIMPLE and Zephyr built in	OMEMO, OTR and OpenPGP encryption via plugins Very flexible interface with multi-window and all-in-one modes
The interface is unmistakably from another era Support for modern commercial networks depends on plugins that break when APIs change	Last tagged release dates from 2020 Aimed at experienced users rather than newcomers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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