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Waistline vs OpenNutriTracker: catalog facts
Waistline	OpenNutriTracker
Free Free and open source.	Free Free and open source.
Android	Android, iOS
Free and open-source calorie counter Food diary and weight tracking in one app	Open source calorie tracking Privacy-focused design
Android only Web-based Cordova app rather than a native one	Fewer features than large commercial food trackers Smaller food database than commercial services
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.