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BombusMod vs Prav: catalog facts
BombusMod	Prav
Free Free and open source under the GPL-2.0 licence.	Free Free to use; the cooperative accepts donations and paid memberships.
Android	Android, iOS
Works with any XMPP server Long-running project with an extensive feature set	Works with other XMPP clients, so there is no vendor lock-in Simple phone number registration
Website and developer documentation are in Russian Requires an XMPP account from a server of your choice	Still in public beta iOS install requires SideStore
Downloadable app	Downloadable app, Hosted service
Open source	Open source
License: GPL-2.0	License: GPL-3.0-only
Account needed	Account needed
Needs internet	Needs internet
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.