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AquarellNotes vs Google Keep: catalog facts
AquarellNotes	Google Keep
Free Free and open source under the Apache 2.0 licence.	Free Free to use with a Google account.
Android	Web
Notes and shopping lists in one app No accounts, ads, analytics or tracking	Quick capture of notes and checklists Reminders built in
Early beta from a single developer No sync between devices	Requires a Google account Notes are stored on Google's servers
Downloadable app	Web application, Hosted service
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Account 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 23, 2026

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