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Fossify Notes vs Crystalpad: catalog facts
Fossify Notes	Crystalpad
Free Free and open source, with no ads.	Free Free and open source under GPL-3.0, with no ads.
Android	Android
Very simple text field for fast note entry Supports checklists as well as text notes	No internet permission and no tracking Notes stored locally on the device
Android only Not designed for large, structured note collections	No sync between devices Young project with a minimal feature set
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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