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Flus vs Matter: catalog facts
Flus	Matter
Freemium The hosted service requires an account; the published source can be self-hosted at no…	Freemium Freemium, with paid tiers unlocking AI summaries and narration.
Web, Self-hosted	macOS, iOS, Web
Combines feed reading with commented link collections Digest-style journal instead of an endless unread list	Combines newsletters, RSS feeds, and read-later saves in one inbox AI summaries and audio narration help process a backlog of reading
Interface and documentation are in French Hosted version requires an account	Full feature set requires a paid subscription Reading experience is centered on its own apps rather than open RSS standards alone
Web application, Self-hosted, Hosted service	Downloadable app, Web application
Open source	Closed source
License: AGPL-3.0	License not stated
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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