Review segment · 16% of overall score

Which food tracking app is the most accurate?

How close logged calories and macros land to a weighed reference.

Segment winner Cronometer app icon
Cronometer 96/100 on accuracy
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Why accuracy matters

A tracker that is consistently 20% off quietly sabotages a deficit or a surplus. Accuracy is the foundation every other feature sits on, which is why it carries the most weight in our model.

How we test accuracy

We log 40 weighed reference meals built from USDA FoodData Central values, then measure the Mean Absolute Percentage Error (MAPE) between the app’s totals and ground truth for energy, protein, carbohydrate and fat.

This segment is led by Dr. Elena Marsh, PhD, RD — Registered dietitian and nutrition scientist who owns our accuracy and diet-analysis testing.

Every app ranked on accuracy

#1 Cronometer app icon Cronometer
96
#2 Welling app icon Welling
90
#3 MacroFactor app icon MacroFactor
88
#4 Carb Manager app icon Carb Manager
80
#5 Lose It! app icon Lose It!
76
#6 YAZIO app icon YAZIO
76
#7 MyFitnessPal app icon MyFitnessPal
74
#8 Lifesum app icon Lifesum
74

Accuracy: FAQ

Which food tracking app is the most accurate?
Cronometer leads on accuracy with a score of 96/100, ahead of Welling (90). A tracker that is consistently 20% off quietly sabotages a deficit or a surplus. Accuracy is the foundation every other feature sits on, which is why it carries the most weight in our model.
How does Food Tracking Lab test accuracy?
We log 40 weighed reference meals built from USDA FoodData Central values, then measure the Mean Absolute Percentage Error (MAPE) between the app’s totals and ground truth for energy, protein, carbohydrate and fat. This segment carries a weight of 16% in our overall score. See the full methodology.