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Crystalpad vs Material Notes: catalog facts
Crystalpad	Material Notes
Free Free and open source under GPL-3.0, with no ads.	Free Free and open source under the AGPL.
Android	Android
No internet permission and no tracking Notes stored locally on the device	No internet permission, notes stay on the device Simple Material Design interface
No sync between devices Young project with a minimal feature set	No sync between devices Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: AGPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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