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Rnote vs Linwood Butterfly: catalog facts
Rnote	Linwood Butterfly
Free Free and open source, with optional sponsorship of the developer.	Free Free and open source under the AGPL-3.0 licence.
macOS, Linux	Linux, Android, Web
Pressure-sensitive stylus input with configurable strokes Imports and annotates PDFs and images	Infinite canvas instead of fixed pages Strokes and elements stay editable after placing them
Native file format is unstable between versions macOS builds come from a separate project	Freeform canvas suits handwriting more than structured text notes Infinite canvas documents can be harder to navigate than linear notes
Downloadable app	Downloadable app, Web application
Open source	Open source
License not stated	License: AGPL-3.0
No account 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 September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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