MacroFactor vs Cronometer vs MyFitnessPal Compared

Every macro tracker works in the App Store screenshots. The question is which one you are still opening on a random Wednesday in week ten, after the novelty is gone and you just want the burrito bowl logged so you can get on with your day.

Four apps own most of that conversation: MyFitnessPal, Cronometer, MacroFactor, and TrakMac. They are not the same tool. They are barely solving the same problem. Here is the honest breakdown, including where TrakMac is not the right pick.

The short version

MyFitnessPal: the database everyone started on

MyFitnessPal has the biggest food database in the category and the deepest barcode coverage. If a packaged product exists, it is probably in there. It now offers voice logging, meal scan, and multi-day logging on Premium, so the “fast logging” gap it used to have is smaller than it was.

The catch for lifters is two-fold. The crowdsourced database means forty near-identical entries for one Chipotle bowl, most of them slightly wrong because nobody corrects old entries. And the targets come from a generic formula plus an activity slider, which gives a 405 squatter and a treadmill walker the same number. Voice is also a paid bolt-on, not the thing the app is built around. Best for general dieters who eat a lot of packaged food and want maximum database coverage.

Cronometer: the micronutrient gold standard

Cronometer is the most accurate of the four. Its database is verified rather than fully crowdsourced, it tracks more than 80 micronutrients, and its free tier is genuinely usable. If you are managing a medical condition, running keto, or you actually care whether you hit your magnesium, this is the tool.

It is not built for speed, though. Logging is still search-and-select, and the targets are formula-driven like everyone else’s. For a lifter who wants protein in range, calories in a band, and to move on, the micronutrient depth is precision you are paying for in time you will not always spend. Best for detail-oriented trackers and anyone with a clinical reason to weigh and verify.

MacroFactor: the smart adaptive coach

MacroFactor is the best-engineered of the mainstream options. Its adaptive algorithm watches your weight trend and your logged intake, then adjusts your calorie target as your real expenditure reveals itself, which is genuinely smarter than a static formula. It added AI food logging that reads a meal from a photo or a description, and the interface is fast.

Two things to know. There is no free tier, so you are paying from the trial onward. And the targets, smart as they are, still start from a TDEE estimate based on weight and intake, not from what you train under. Best for data-driven dieters who want adaptive coaching and do not mind paying for it.

TrakMac: voice-first, built for lifters

TrakMac makes two bets the others do not. First, logging is voice-first and on-device: you tap the mic, say “Chipotle bowl, double steak, brown rice, black beans,” and an AI model estimates the macros in about ten seconds, no database scroll. Second, your targets come from your training. Onboarding asks your bench max, mile time, whether you can do a muscle-up, how you would handle an echo bike sprint, and infers a body type and metabolic baseline from that instead of leading with a demographic formula.

There is a third bet underneath both, and it is the one that actually matters. The other apps are built around the architecture of perfect tracking: weigh it, scan it, verify it, get the number exactly right. That is fine engineering and a poor fit for an actual life. Nobody is weighing chicken while hovering over a toddler. You are eating over the kitchen sink, logging a protein bar on your way out the door, talking to your phone while the leftovers spin in the microwave. Log it, eat it, get on with your day. TrakMac is built for that person: scientifically sound under the hood, calibrated to your training and your body, but wrapped in an experience fast and forgiving enough that you actually keep using it. Better macros are a habit problem, not a math problem. Humans are not precise, and an app that pretends otherwise is one you quit. The tracker that meets you where you are beats the one that demands you come to it.

The honest limits: it is iOS only, the food database is smaller than MyFitnessPal’s, the estimates are close-enough rather than clinical, and it does not chase micronutrients. If you need exact numbers for a medical reason, weigh your food in Cronometer. If you want the fastest log you will actually keep doing, with targets that know the difference between a powerlifter and a runner, that is the bet TrakMac makes.

So which one should you use?

It comes down to what you optimize for. Maximum database and packaged-food coverage, MyFitnessPal. Micronutrient accuracy and a strong free tier, Cronometer. Adaptive coaching you are willing to pay for, MacroFactor. Fastest voice logging, targets built from your training, and an experience built for real life rather than a lab, TrakMac.

The research keeps landing on the same point underneath all of this. A 2011 systematic review in the Journal of the American Dietetic Association (Burke et al.) found that the consistency of self-monitoring, not the precision of any single log, is what predicts results. The most accurate app you abandon in three weeks loses to the close-enough one you still open in week ten. Pick for the Wednesday, not the screenshot.

For more on how voice estimation compares to barcode and photo methods, see the FAQ or the breakdown of voice logging vs barcode scanning.

Download TrakMac

TrakMac is voice-first macro tracking for people who lift, with targets set from how you actually train. Free 7-day trial, no card required. Download TrakMac free. iOS, available now.