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Chompass vs OpenNutriTracker: catalog facts
Chompass	OpenNutriTracker
Free Free and open source under the MIT licence; cloud AI costs depend on your own provider…	Free Free and open source.
Android, Web	Android, iOS
No ads, analytics or account Optional on-device AI on Android	Open source calorie tracking Privacy-focused design
AI logging needs your own API key or on-device model No sync between the web and Android versions	Fewer features than large commercial food trackers Smaller food database than commercial services
Downloadable app, Web application	Downloadable app
Open source	Open source
License: MIT	License not stated
No 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 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.