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OpenNutriTracker vs Waistline: catalog facts
OpenNutriTracker	Waistline
Free Free and open source.	Free Free and open source.
Android, iOS	Android
Open source calorie tracking Privacy-focused design	Free and open-source calorie counter Food diary and weight tracking in one app
Fewer features than large commercial food trackers Smaller food database than commercial services	Android only Web-based Cordova app rather than a native one
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is 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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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