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Flare vs Franz: catalog facts
Flare	Franz
Free Free and open source under the AGPL-3.0 licence.	Freemium Free to download; the homepage does not detail paid plans.
Linux	Windows, macOS, Linux
Native Linux alternative to the official Signal desktop app Open source under the AGPL	Many messengers and email accounts in one window Native Signal support
Unofficial and not supported by Signal Fewer features than the official Signal applications	Pricing for paid features is not clearly stated on the homepage Runs web versions of services, so behaviour depends on each service
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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