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Privacy Friendly Sketching vs Sketchbook: catalog facts
Privacy Friendly Sketching	Sketchbook
Free Free and open source under GPL-3.0 or later, with no ads.	Freemium Sketchbook Pro for desktop is sold separately from the mobile app; check the stores for…
Android	Windows, macOS, Android, iOS
Sketches are saved encrypted No ads and minimal permissions	Available on desktop and mobile Uncluttered interface focused on the canvas
Basic drawing features only Android only	Desktop and mobile versions are separate products No Linux version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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