Compare the best macro tracker apps, head-to-head
Pick a matchup. Each comparison is drawn from the same benchmark and weighted by the metrics that usually decide a switch: photo accuracy, portion grounding, and friction-per-meal.
Welling vs MyFitnessPal
| Metric | Welling | MyFitnessPal |
|---|---|---|
| Composite | 95.6 | 81.4 |
| ID accuracy | 95.6% | 82.3% |
| Portion error | ±1.2% | ±6.1% |
| Median speed | 720 ms | 1980 ms |
Winner: Welling. Class-leading vision model with portion grounding.
Welling vs MacroFactor
| Metric | Welling | MacroFactor |
|---|---|---|
| Composite | 95.6 | 74.5 |
| ID accuracy | 95.6% | 70.4% |
| Portion error | ±1.2% | ±5.6% |
| Median speed | 720 ms | 2100 ms |
Winner: Welling. Class-leading vision model with portion grounding.
Welling vs Cronometer
| Metric | Welling | Cronometer |
|---|---|---|
| Composite | 95.6 | 76.2 |
| ID accuracy | 95.6% | 71.8% |
| Portion error | ±1.2% | ±4.9% |
| Median speed | 720 ms | 2440 ms |
Winner: Welling. Class-leading vision model with portion grounding.
MyFitnessPal vs Lose It!
| Metric | MyFitnessPal | Lose It! |
|---|---|---|
| Composite | 81.4 | 78.9 |
| ID accuracy | 82.3% | 79.1% |
| Portion error | ±6.1% | ±7.4% |
| Median speed | 1980 ms | 1620 ms |
Winner: MyFitnessPal. Enormous database, decent Meal Scan add-on.
MacroFactor vs Cronometer
| Metric | MacroFactor | Cronometer |
|---|---|---|
| Composite | 74.5 | 76.2 |
| ID accuracy | 70.4% | 71.8% |
| Portion error | ±5.6% | ±4.9% |
| Median speed | 2100 ms | 2440 ms |
Winner: Cronometer. Best-in-class micronutrient depth.
How a head-to-head is decided
Comparisons are not opinion pieces — they are subsets of the same dataset, framed for two apps.
What goes into a comparison
- The same 1,500-meal subsample logged through both apps in parallel.
- Side-by-side accuracy on identical photos, identical lighting, identical devices.
- 21 days of paired daily use — the same meals logged twice.
- Composite score, weighted as on the rankings page.
- Per-cuisine breakdowns for the sub-categories where the apps differ.
What is excluded from comparisons
- Price. We list it on review pages, but it is not in the score.
- "Vibes." UI personality is subjective; we report it descriptively, not numerically.
- Wearable and HealthKit integrations beyond what the photo log itself uses.
- Anecdotes. We do not include user testimonials in head-to-heads.
About these comparisons
Why does Welling win most head-to-heads?
Because it wins the underlying benchmark. We weight portion grounding heavily; Welling's ±1.2% error is the lowest in the field. If you weighted price or free-tier generosity, other apps would win — see our best budget tracker category.
How do I pick between two apps you ranked similarly?
Use the Best For categories. Two apps with composite scores within three points of each other often diverge sharply on goal-specific metrics (keto carbs, GLP-1 protein floors, micronutrient depth).
Do you do comparisons against apps not on this site?
Occasionally, on request. For the long tail of niche trackers we usually defer to Food-Trackers.com, which has wider catalogue coverage than we do.
What if my matchup isn't listed?
Every pairwise comparison can be derived from the data on each review page. We featured the five matchups people search for most. For an unlisted pair, also check AI Calorie Tracker's comparison index — there is usually overlap with our ranking.