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Cozi vs Tweek: catalog facts
Cozi	Tweek
Free Free to sign up and use.	Free Described as free on its website.
Android, Web	Android, iOS, Web
Shared calendar with color coding per family member Shared grocery lists, to-dos and recipes	Weekly view that resembles a paper planner Google, Outlook and Apple calendar sync
Requires an account and stores data on Cozi's servers Closed source	Some features may require a paid upgrade No desktop apps mentioned beyond the web version
Downloadable app, Web application, Hosted service	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it 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.