TL;DR
- For 2026, pick MacroFactor for adaptive TDEE coaching, Cronometer for the most accurate database, and MyFitnessPal for the biggest food library and easiest logging.
- On accuracy, the independent evidence favors Cronometer. A 2025 study of endurance athletes found Cronometer more reliable and valid than MyFitnessPal, which overestimated energy and carbs and underestimated protein.[7]
- On price, Cronometer is the value pick at $59.99/yr with a genuinely useful free tier; MyFitnessPal Premium is $79.99/yr; MacroFactor is $71.99/yr with no free tier.[3][5][1]
- Only MacroFactor adapts your calorie target to your real weight trend each week.[2]
These three apps win at different jobs, so the right one depends on whether you care most about adaptive targets, database accuracy, or sheer convenience. MacroFactor recalculates your maintenance from your own data; Cronometer is built on lab-analysed nutrient sources; MyFitnessPal has the largest library and the smoothest logging, with the accuracy trade-off that comes from crowd-sourced data. Pricing is from each vendor's page and accuracy claims come from peer-reviewed studies, not app-store ratings. Verified 2026-06-07.
Verified price and feature comparison
| Spec | MacroFactor | Cronometer | MyFitnessPal |
|---|---|---|---|
| Monthly price | $11.99[1] | $10.99 (Gold)[3] | Premium varies; $79.99/yr[5] |
| Annual price | $71.99[1] | $59.99 (Gold)[3] | $79.99 (Premium), $99.99 (Premium+)[5] |
| Free tier | None; 7-day trial[1] | Yes; full micros[3] | Yes; logging without barcode scanner[5] |
| Adaptive TDEE | Yes[2] | No | No |
| Database sourcing | Curated, verified entries | NCCDB, USDA, CRDB (lab-analysed)[4] | Largest library, crowd-sourced |
| Barcode scanner | Included | Included | Premium only[5] |
Database accuracy: what the studies say
Accuracy is where these apps genuinely differ, and it has been measured. A 2025 study in the Journal of Human Nutrition and Dietetics compared MyFitnessPal and Cronometer in 43 endurance athletes against the Canadian Nutrient File reference.[7] Cronometer showed good to excellent inter-rater reliability for all nutrients and good validity for nearly everything, while MyFitnessPal showed poor reliability and validity for total energy, carbohydrates, protein, and several others, overestimating energy and carbs and underestimating protein. The authors concluded MyFitnessPal may not accurately reflect true intake and that Cronometer is a promising alternative. A separate JMIR validation found MyFitnessPal itself accurate for total energy (r=0.96, overestimated by only 1.3%) and macros, but poor for sodium and cholesterol.[6] Net read: MyFitnessPal is good enough for calories and rough macros, but Cronometer is the more accurate tool, and its lab-analysed sourcing is why.[4]
MacroFactor: adaptive targets you cannot get elsewhere
MacroFactor's defining feature is its adaptive expenditure algorithm. Instead of locking your calorie target to a one-time formula, it learns your real maintenance from your logged weight and intake trend and adjusts your calorie and macro targets each week as your metabolism shifts.[2] That directly solves the "my calculator says X but the scale will not move" problem by treating your own data as the source of truth. It costs $11.99/mo or $71.99/yr with no free tier, only a 7-day trial, so you are paying for the coaching loop rather than the database.[1] Neither Cronometer nor MyFitnessPal offers this; they hold your target fixed until you change it.
MyFitnessPal: convenience and library size
MyFitnessPal's strengths are the largest food library and the lowest-friction logging, which is why it remains the most popular tracker. The trade-off is the crowd-sourced database: anyone can add entries, so the same food appears multiple times with different numbers, and accuracy is best for barcode-scanned packaged foods and worst for manual restaurant and home-cooked items. Note that the barcode scanner is now a Premium feature, and Premium runs $79.99/yr with Premium+ at $99.99/yr.[5] If you want the easiest logging and the broadest library and you check entries against the label, MyFitnessPal does the job; if you want trustworthy numbers without policing each entry, it is not the accuracy pick.
Decision frame
- You keep stalling on a cut or lean bulk and want targets that adapt to your weight trend: MacroFactor.
- You want the most accurate database and deep micronutrients, plus a free tier: Cronometer.
- You want the biggest library and easiest logging: MyFitnessPal.
- You want a free option: Cronometer's free tier covers full micronutrient logging; MyFitnessPal's free tier logs food but no longer scans barcodes.[3][5]
The verdict: pick MacroFactor if adaptive coaching is what you want and the lack of a free tier does not bother you, Cronometer if accuracy and micronutrient depth matter most, where it is both the more validated tool and cheaper at $59.99/yr, and MyFitnessPal if library size and effortless logging beat database precision for you. The independent evidence favors Cronometer on accuracy; MacroFactor owns adaptive TDEE; MyFitnessPal owns convenience. To set the starting numbers any of these will track, estimate maintenance with the TDEE Calculator and split protein and macros with the Macro Calculator. For the two-app comparison, read MacroFactor vs Cronometer 2026. And if you are not sure daily logging is right for you in the first place, weigh the trade-offs in calorie counting vs intuitive eating.
Verified 2026-06-07. Prices and features change without notice; accuracy figures are sourced to named peer-reviewed studies.
FAQ
Which macro app is most accurate?
Cronometer. A 2025 study of endurance athletes found it more reliable and valid than MyFitnessPal, which overestimated energy and carbs and underestimated protein. Cronometer's lab-analysed NCCDB and USDA sourcing is the reason.[7][4]
Which app is cheapest?
Cronometer, at $59.99/yr (Gold) with a free tier that already covers full micronutrient logging. MacroFactor is $71.99/yr with no free tier; MyFitnessPal Premium is $79.99/yr.[3][1][5]
What makes MacroFactor different?
Its adaptive expenditure algorithm learns your real maintenance from your weight and intake trend and adjusts your calorie and macro targets each week, rather than fixing them from a one-time formula. Neither Cronometer nor MyFitnessPal does this.[2]
Is MyFitnessPal accurate enough for tracking calories?
For total energy and rough macros, yes; a JMIR validation found it accurate for energy (overestimated by only 1.3%) but poor for sodium and cholesterol. Accuracy is best for barcode-scanned packaged foods and weakest for manual entries.[6]
References
- 1 MacroFactor press kit (pricing: $11.99/mo, $71.99/yr; no free tier; 7-day trial) — MacroFactor (2026)
- 2 MacroFactor app overview (adaptive expenditure / dynamic TDEE algorithm) — MacroFactor (2026)
- 3 Cronometer Gold pricing ($10.99/mo or $59.99/yr; free tier with full micronutrient logging) — Cronometer (2026)
- 4 Cronometer data sources (NCCDB, USDA, CRDB — lab-analysed nutrient data) — Cronometer Help Center (2026)
- 5 MyFitnessPal Premium pricing ($79.99/yr Premium, $99.99/yr Premium+; barcode scanner is a Premium feature) — MyFitnessPal (2026)
- 6 Accuracy of Nutrient Calculations Using MyFitnessPal: Validation Study (energy r=0.96, +1.3%; protein underestimated 7.8%; poor for sodium/cholesterol) — Journal of Medical Internet Research (PMC7641788) (2020)
- 7 Reliability and Validity of MyFitnessPal and Cronometer for Canadian Endurance Athletes (Cronometer more accurate and reliable) — Journal of Human Nutrition and Dietetics (PMC12550805) (2025)