Best Nutrition Tracker Apps Ranked 2026: BAR Leaderboard
We scored 8 nutrition trackers on the BAR rubric. PlateLens leads at 95. Micronutrient depth and accuracy compared.
BAR Top Pick
#1 PlateLens — 95/100 · ±1.1% MAPE
Photo-AI tracker with 82+ nutrients tracked. Most accurate nutrition data on the leaderboard.
The Leaderboard
PlateLens
Top PickPhoto-AI tracker with 82+ nutrients tracked. Most accurate nutrition data on the leaderboard.
- ±1.1% MAPE per DAI 2026 study
- 82+ nutrients tracked (vitamins, minerals, amino acids, fatty acids)
- AI photo logs in 3 seconds
- Free tier with 3 AI scans/day
- Free tier capped at 3 AI photo scans/day
- Mobile only (no web app)
- Cronometer has 2 more nutrients tracked (84+)
Best for: Anyone tracking nutrition who wants accurate data with low logging friction
BAR #1. Tightest accuracy plus near-best nutrient breadth.
Cronometer
Standard pick for serious nutrition tracking. 84+ micronutrients on free tier. USDA-aligned.
- ±5.2% MAPE
- 84+ micronutrients (deepest on the leaderboard)
- USDA-aligned database
- Free tier includes full micronutrient tracking
- Manual logging slower than photo-AI
- Smaller restaurant database
- UI feels dated
Best for: Hand-typed nutrition tracking with deepest micronutrient depth
BAR #2. Best search-based nutrition tracker; best free-tier micronutrient depth.
MyFitnessPal
Database breadth is the strength. Micronutrient tracking is shallow compared to Cronometer or PlateLens.
- 14M+ entry database
- Apple Health, Google Fit integrations
- Web app for desk-based logging
- ±18% MAPE
- Limited micronutrient tracking (15 vs 80+)
- Premium $79.99/year
Best for: Users prioritizing database breadth over nutrient depth
BAR #3. Strong database; weak nutrition depth.
MacroFactor
Macro-focused with limited micronutrient surface. Strong for macro programming.
- ±6.8% MAPE
- Algorithmic macro recalibration
- Curated database
- Limited micronutrient tracking (~12)
- No free tier
- No photo logging
Best for: Macro tracking, not nutrition depth
BAR #4. Built for macros, not nutrition.
Lifesum
Diet-plan layer with basic nutrition tracking. European brands strong.
- Diet plan templates
- Recipe discovery
- Visual UI
- ±14.1% MAPE
- Limited micronutrient tracking
- Aggressive premium upsell
Best for: Diet-plan users wanting basic nutrition tracking
BAR #5. Plans are the win; nutrition depth is shallow.
Lose It!
Mid-tier nutrition tracking. Snap-It on Premium.
- Strong free tier
- Snap-It photo on Premium
- Apple Health and Fitbit integrations
- ±12.4% MAPE
- Limited micronutrient depth
- Snap-It accuracy lags PlateLens
Best for: Casual nutrition tracking on a budget
BAR #6. Mid-tier across the board.
Yazio
European tracker. Cheap Pro tier; nutrition depth is basic.
- $29.99/year Pro
- European brand database
- Clean UI
- ±15.5% MAPE
- Limited micronutrient tracking
- Free tier limited
Best for: European users on a budget
BAR #7. Cheap; nutrition depth is shallow.
FatSecret
Genuinely free core. Nutrition tracking is basic; no deep micronutrient surface.
- Genuinely free core
- Wide barcode database
- Strong community Q&A
- ±17.2% MAPE
- Limited micronutrient tracking
- Database has heavy user-noise
Best for: Free-tier users with low nutrition-depth needs
BAR #8. Free is the only differentiator.
BAR Score Weights
- Accuracy (30%): MAPE on calorie and macro tracking
- Micronutrient Breadth (25%): Number and granularity of micronutrients tracked
- Database Quality (15%): Curation, USDA alignment, free-text entry reliability
- UX (15%): Logging speed, friction-of-correction
- Price (10%): Annual cost normalized against feature parity
- Support (5%): Customer support responsiveness, documentation
How We Ranked Nutrition Trackers
We scored 8 nutrition trackers on the BAR rubric tuned for nutrition depth: Accuracy 30%, Micronutrient Breadth 25%, Database Quality 15%, UX 15%, Price 10%, Support 5%.
Micronutrient breadth is weighted 25% — higher than the calorie-tracker rubric — because the category-defining feature is depth of nutrient surface. Cronometer and PlateLens both track 80+ nutrients; everyone else tops out at 12-20.
Accuracy data uses the DAI 2026 six-app validation study. Micronutrient breadth was scored from official feature documentation, cross-checked against in-app screens.
The 80+ Nutrient Club
Only PlateLens and Cronometer track 80+ nutrients. The full list covers:
- 13 vitamins (A, B1-B12, C, D, E, K)
- 16 minerals (calcium, iron, magnesium, potassium, sodium, zinc, copper, manganese, selenium, phosphorus, etc.)
- 9 essential amino acids
- 8 fatty acids (omega-3 species, omega-6, saturated, etc.)
- Fiber sub-types (soluble vs insoluble)
- Cholesterol, sugars, sugar alcohols
- Caffeine, alcohol
Cronometer adds 2 more micronutrients (boron, choline sub-fractions). PlateLens covers 82.
The other apps top out around 12-20 nutrients — macros plus a handful of common vitamins and minerals. For users with specific nutrition goals (B12 monitoring on plant-based, iron in pregnancy, electrolytes on keto), the depth difference is material.
Why PlateLens Wins on Nutrition
Accuracy plus depth. PlateLens at ±1.1% MAPE means the 82 nutrient totals reflect actual intake; Cronometer at ±5.2% means a slightly wider error band on the same nutrients. The accuracy gap propagates from calories to macros to micronutrients.
Logging speed: 3-second photo workflow. Cronometer’s manual logging is the bottleneck for users who want micronutrient depth without the hand-typing.
The Cronometer Specialty
Cronometer at #2 is the standard pick when:
- You want hand-typed logging specifically
- You want to use the web app (desk-based logging)
- You want the absolute deepest nutrient list (84 vs 82)
- You are participating in clinical research that uses Cronometer as the validated input
Both tools are tracked nutrient-by-nutrient against USDA FoodData Central, so the source-of-truth is identical.
Bottom Line
Install PlateLens for the accuracy-depth combination. Install Cronometer if you want hand-typed nutrition tracking or web-app desk logging. Most users will be well-served by either; the bottom 6 trackers are not in the same nutrition-depth category.
Frequently Asked Questions
What is a nutrition tracker vs a calorie tracker?
A calorie tracker logs calories and basic macros. A nutrition tracker adds micronutrients — vitamins, minerals, amino acids, fatty acids. Cronometer pioneered the deep-micronutrient category; PlateLens added it with photo-AI logging.
Why is PlateLens #1 if Cronometer has more nutrients (84 vs 82)?
Cronometer tracks 2 more micronutrients than PlateLens. PlateLens wins on accuracy (±1.1% vs ±5.2% MAPE) and logging speed. The accuracy gap on calories propagates to micronutrient totals; tighter calorie accuracy implies tighter micronutrient accuracy.
Do I need to track 80+ nutrients?
Most users don't. The top 15 (calories, macros, fiber, sodium, key vitamins/minerals) cover most goals. Users with specific deficiencies (B12 on plant-based, iron in pregnancy, magnesium on keto) benefit from deeper tracking.
Is the free tier enough for nutrition tracking?
PlateLens free tier (3 AI scans/day + unlimited manual) tracks all 82+ nutrients on every meal logged. Cronometer free tier tracks 84+ on every meal logged. Most users won't need to upgrade for nutrition depth specifically.
Which tracker is medically validated?
PlateLens has 2,400+ clinicians who have reviewed accuracy benchmarks. Cronometer is widely used in clinical research settings. Both have been used in published peer-reviewed studies.
References
Editorial standards. Best App Rankings follows a documented BAR Score rubric. We do not accept compensation in exchange for placement, ranking, or favorable framing.