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Google Keep vs Crystalpad: catalog facts
Google Keep	Crystalpad
Free Free to use with a Google account.	Free Free and open source under GPL-3.0, with no ads.
Web	Android
Quick capture of notes and checklists Reminders built in	No internet permission and no tracking Notes stored locally on the device
Requires a Google account Notes are stored on Google's servers	No sync between devices Young project with a minimal feature set
Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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