Compare
Honest comparisons against the apps people already pay for. Each page leads with where the other app wins, then shows where Deficit's design fits a different kind of lifter.
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MyFitnessPal vs Deficit
MyFitnessPal has the largest food database and a free tier; Deficit brings athlete-focused calorie math and a target that adjusts every week. Where each one wins.
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MacroFactor vs Deficit
MacroFactor adapts indefinitely; Deficit gives you an end date. The differences in calorie math (Mifflin vs Cunningham), protein anchor, and dieting model, with worked numbers.
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Cronometer vs Deficit
Cronometer goes deep on micronutrients across 84 vitamins and minerals. Deficit goes deep on cycle-based cutting. A 60-second decision flow tells you which one's yours.
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Carbon Diet Coach vs Deficit
Carbon coaches you indefinitely. Deficit gives you an end date. Two apps built for serious lifters, with the same evidence-based protein math but very different philosophies on dieting structure.
How to read these
Every one of these comparisons starts from the same core. Deficit is built for people running a defined cut rather than tracking forever. It sets your calorie target from the Cunningham equation on your lean body mass, anchors protein to that same lean mass, and runs on a fixed four to twelve week schedule with a weekly adjustment instead of an open-ended timeline. The pages above weigh that approach against what each competitor does best, from MyFitnessPal's food database to MacroFactor's adaptive coaching, Cronometer's micronutrient depth, and Carbon's hands-on coaching, so you can see which set of trade-offs matches the way you actually diet. If you are not sure where to start, the MyFitnessPal comparison is the most useful for people switching from a free tracker, and the MacroFactor one digs deepest into the calorie math.