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Saber vs Rnote: catalog facts
Saber	Rnote
Free Free and open source.	Free Free and open source, with optional sponsorship of the developer.
Windows, macOS, Linux, Android, iOS	macOS, Linux
Built specifically for handwriting and stylus input Runs on Android, iOS, Windows, macOS and Linux	Pressure-sensitive stylus input with configurable strokes Imports and annotates PDFs and images
Focused on handwriting, less suited to typed notes Best experience needs a device with a stylus	Native file format is unstable between versions macOS builds come from a separate project
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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