Cronometer: Track Vitamins, Minerals, and Micronutrients in Detail

Cronometer is a nutrition tracking app that goes far deeper than most calorie counters. While apps like MyFitnessPal focus mainly on calories and macros — protein, carbs, and fat — Cronometer also tracks over 80 micronutrients including vitamins A, B12, C, D, E, and K, along with minerals like iron, calcium, magnesium, potassium, and zinc. This level of detail is especially useful if you follow a special diet, take supplements, have a condition that affects nutrient absorption, or want to make sure you are actually getting everything your body needs.

Cronometer's food database is sourced primarily from the USDA and other scientifically verified sources, which makes it particularly accurate for whole foods. If you eat a lot of fresh produce, meat, or whole grains rather than packaged foods, Cronometer tends to give more reliable micronutrient data than databases built mainly from product labels.

The app shows your daily nutritional targets as progress bars — each nutrient has its own bar that fills as you log food. If a bar is half full by dinner time, you know you need more of that nutrient. When you have met a target, the bar turns green. When you have exceeded a recommended upper limit, it turns red.

Cronometer also has a biometric tracking section where you can log blood pressure, glucose readings, weight, energy levels, and other health data. Over time, the app lets you look for connections between what you eat and how you feel.

The free version of Cronometer covers everything most people need. A paid upgrade called Cronometer Gold removes ads and adds more detailed charting, but the free version already includes full micronutrient tracking.