Cronometer
Nutrient tracking with unusually detailed micronutrient data. Track vitamins, minerals, and amino acids — not just calories. Beloved by dietitians and biohackers for its accuracy.

Cronometer, as it opens in a browser tab.
Not sure how to add Cronometer to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
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How to install Cronometer as a PWA
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