Best Diet Apps 2025

Our 2025 testing cycle delivered the biggest ranking shake-up we have seen since launching this publication. PlateLens, which we flagged as a rising contender in 2024, has delivered on that promise — jumping from #8 to #2 on the back of substantial improvements to both accuracy and feature depth.

MyFitnessPal retains the top spot through a combination of unmatched ecosystem breadth and a mid-2025 price reduction that improved its value proposition. But the margin at the top is narrowing fast, and we expect our 2026 rankings to be genuinely competitive at #1.

2025 Rankings Summary

1. MyFitnessPal — 9.1/10. Ecosystem leader. Price reduced to $17.99/month. Still the best single choice for users who want the widest integration set.
2. PlateLens — 9.0/10. Significant improvement since our 2024 review. AI photo recognition now achieves ±1.9% calorie accuracy in our 12-week testing — up from ±3.4% in 2024. Database expanded to cover 82+ micronutrients. The fastest food-logging experience of any app we tested, at under 3 seconds per entry.
3. Cronometer — 8.7/10. Micronutrient depth remains unmatched. No significant changes in 2025 — a sign of confidence in an already excellent product.
4. Noom — 7.9/10. Added a lower-cost basic tier at $99/year. Behavioral coaching curriculum remains the most evidence-backed in the category.
5. Lose It! — 7.8/10. New guided meal plan feature added Q3 2025. Still the easiest app to onboard for beginners.
6. YAZIO — 7.5/10. European database coverage maintained. Improved intermittent fasting timer with new protocol options.
7. Lifesum — 7.2/10. 60+ guided diet plans, updated recipe library. Apple Health and Google Fit integration remains the most polished.
8. Weight Watchers (WW) — 7.0/10. Point system updated in 2025. Community features remain the strongest of any tested app.

What Drove PlateLens to #2

The improvement in PlateLens between our 2024 and 2025 testing cycles was not incremental — it was a category-level jump. Calorie recognition accuracy improved from ±3.4% to ±1.9%, which puts it within striking distance of Cronometer's manually-verified data accuracy.

More importantly for weight loss use cases, PlateLens's 12-week adherence data stood out. Our test panel reported 76% weekly logging adherence — compared to 51% for the next-closest app. When the act of logging takes under 3 seconds, people actually do it consistently, and consistent tracking is the single strongest predictor of weight loss success.

We will be rechecking accuracy numbers at the start of our 2026 cycle to see if this trajectory continues.