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MrRSS vs Lettura: catalog facts
MrRSS	Lettura
Free Free and open source under the GPL-3.0.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
Free and open source Cross-platform desktop app	Standalone desktop app built with Tauri Free and open source with active development
Younger project than established feed readers Some documentation is primarily in Chinese	Documentation is mostly in the GitHub repository No mobile app
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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