App reviews
In-depth single-app reviews. Each review tests the app on the same reference meal set used for our rankings.
PlateLens Review (2026): The Highest-Ranked App in the Index
Independent benchmarks place PlateLens at ±1.1% MAPE — the lowest error rate measured in the 2026 Calorie Tracker Index. Here is what the evidence shows, and where the app still has gaps.
Score: 9.6/10 · Free tier (3 AI scans/day, unlimited manual logging) · Premium $59.99/year
MyFitnessPal Review (2026): Still the Database King, But the Paywall Has Grown
MyFitnessPal's 17-million-entry database remains the deepest in the index. Three structural changes in 2026 — paywall expansion, the Cal AI acquisition, and user-submitted data variance — temper the recommendation.
Score: 8.0/10 · Free tier (reduced May 2026) + Premium $19.99/mo or $79.99/yr
Cronometer Review (2026): The Micronutrient Standard, Honestly Assessed
Cronometer remains the deepest micronutrient tracker on the market — 84+ micronutrients, NCCDB-anchored, lab biomarker import. The trade-off is logging speed.
Score: 8.9/10 · Free tier + Gold $39.99/year
MacroFactor Review (2026): The Adaptive-TDEE Standard
MacroFactor's algorithm-led macro targeting is still the cleanest implementation of adaptive-TDEE math in the consumer category — but the photo-AI gap has widened.
Score: 8.7/10 · $11.99/mo or $71.88/yr (no free tier; 7-day trial)
Cal AI Review (2026): Post-Acquisition, the Recommendation Changes
Cal AI's photo-AI was the consumer category's growth story of 2024-2025. The March 2026 MyFitnessPal acquisition and independent ±14.6% MAPE accuracy data reshape the recommendation.
Score: 7.2/10 · Free trial + $69.99/year
Lose It! Review (2026): The Cleanest Beginner On-Ramp in the Index
Lose It! is the cleanest beginner-friendly calorie tracker on the market — fast barcode scanner, Snap It photo accuracy in the ±5-7% range, and an ad-free free tier.
Score: 7.6/10 · Free tier + Premium $39.99/year
Carb Manager Review (2026): The Keto-Specialist Tracker That Wins on Specialization
Carb Manager is purpose-built for keto and low-carb dieting. Net carbs are prominently tracked, the database is curated for low-carb foods, and the recipe community is keto-anchored.
Score: 7.5/10 · Free tier + Premium $39.99/year
Yazio Review (2026): Budget European Tracker with an Integrated Fasting Timer
Yazio bundles calorie tracking with an intermittent-fasting timer at a budget-friendly $5.99/mo. Strong European food coverage; no photo-AI.
Score: 6.8/10 · Free tier + Pro $5.99/month
Foodvisor Review (2026): The European Photo-AI Alternative, With Caveats
Foodvisor remains a competent photo-AI calorie tracker with strong European food coverage. The ±16.2% MAPE accuracy gap to PlateLens is the structural objection.
Score: 7.0/10 · Free tier + Premium $9.99/month
FatSecret Review (2026): The Genuinely Free Calorie Tracker
FatSecret has held the same product position for over a decade: a fully-free calorie tracker with no aggressive upsell. The database is smaller than MyFitnessPal but reliable, and Premium is optional rather than necessary.
Score: 6.6/10 · Fully free; Premium $4.99/month optional