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Cronometer vs OpenNutriTracker: catalog facts
Cronometer	OpenNutriTracker
Freemium Free sign-up, with paid tiers for extra features.	Free Free and open source.
Android, iOS, Web	Android, iOS
Tracks up to 95 nutrients and compounds Lab-analysed, verified nutrition data	Open source calorie tracking Privacy-focused design
Level of detail can be more than casual users need Closed-source online service	Fewer features than large commercial food trackers Smaller food database than commercial services
Downloadable app, Web application	Downloadable app
Closed 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.