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Fluent Reader vs Raven Reader: catalog facts
Fluent Reader	Raven Reader
Free Free and open source under a BSD 3-clause licence. The Microsoft Store and Mac App Store…	Free The open-source application is available without a license fee.
Windows, macOS, Linux	Windows, macOS, Linux
Works fully locally, or syncs with Inoreader, Feedbin, Fever and Google Reader API services Regular expression rules that hide, mark read or star articles automatically as they arrive	No account and no data collection; subscriptions stay local Runs on Windows, macOS and Linux from one codebase
Electron, so it is heavy for a feed reader The Microsoft Store version is recommended for auto-update; GitHub builds update manually	Electron application with a large footprint No synchronisation between machines
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 22, 2026

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