The best macro tracking app is the one that scores well on the criteria you will actually use every day — and those criteria are knowable in advance. This page lists six, explains what each one is really testing, and then puts three apps in the same table under the same rules. One of them is ours: Zyra builds MacroDiet and Zyra Workouts; the criteria below apply to us too, and where MacroDiet is behind, the table says so.
Six criteria that matter
1. How the app estimates your expenditure. Every tracker starts from a formula — body weight, height, age, sex, an activity guess — and every formula is an estimate of a population, not of you. The question is what happens next. Some apps keep the starting number until you change it. Others compare what you logged with how your weight trend moved and revise the estimate week by week. That second behaviour is the single biggest technical difference between trackers, and it only pays off if you log for weeks. (Why the starting number is off by hundreds of kilocalories for most people is covered in macro calculator vs a tracking app.)
2. Where the food data comes from. A crowd-sourced database is enormous and fast to search but carries duplicate and mistyped entries; a verified database is smaller and cleaner. Barcode coverage varies by country. What matters for your macros is whether the entry you tap is right, which is less about the size of the database than about its curation and your habits.
3. How fast a normal meal logs. Macro tracking fails when it becomes a chore. Count the taps for a repeated breakfast, for a barcode, for a restaurant meal with no barcode. Copy-yesterday, favourites with saved portions, and quick-add of raw macros are the features that decide this.
4. How targets are set — and whether you can override them. Look at the protein rule (grams per kg, or a percentage), the fat floor, the calorie floor, and the cap on how aggressive a deficit can be. An app that will hand you a 900 kcal target without a floor is not being generous. MacroDiet's own rules are documented on its macro calculator and calorie deficit calculator pages: floors of 1,500 kcal (male profile) and 1,200 kcal (female profile) and a deficit cap of 35% of TDEE.
5. Platform. Native iPhone and Android apps, a watch app, home-screen widgets, a web app you can open on a laptop, exports to a health platform or a spreadsheet. None of this changes the arithmetic, all of it changes whether you keep logging.
6. Price and what is behind the paywall. Free tiers differ in what they hold back — sometimes ads, sometimes the barcode scanner, sometimes the macro goals themselves.
How the criteria play out
Apps in alphabetical order. Every competitor cell comes from the company's own public page, opened on the date at the top of this article; where a fact could not be verified it is left out rather than guessed.
| Criterion | MacroDiet (ours) | MacroFactor | MyFitnessPal |
|---|---|---|---|
| Expenditure | Starting estimate from the v2 formula (Mifflin-St Jeor × activity). The update loop from logs is being built; the app shows the starting number today. | Dynamic expenditure that "adapts to changes in your metabolism", with weekly coaching check-ins3 | Formula-based goal; user-adjusted |
| Food data | Search, barcode via OpenFoodFacts import, custom foods and recipes | "Verified food database"; barcode scanner; AI label scanning3 | "over 18 million global foods"; Barcode Scan; Meal Scan1 |
| Logging speed features | Hourly food log, plate view; no copy-day or favourites yet | Weekly check-ins, habit tracker3 | Barcode, meal scan, photo and voice logging in paid tiers2 |
| Target rules | Protein 1.2–2.4 g/kg by tier, fat floor max(0.6 g/kg, 20% kcal), calorie floors, 35% deficit cap — all documented | Three styles: Coached (app adjusts weekly), Collaborative, Manual4 | Custom macros and goals are a paid feature2 |
| Platform | Web app; public calculators in six languages (EN, DE, ES, FR, IT, NL) | iPhone, iPad, Apple Watch, Mac, Vision Pro on the iOS listing3 | iOS, Android, web account1 |
| Price | No payment taken today; paid tier planned | $11.99/mo, $47.99/6 mo, $71.99/yr, 7-day trial3 | Free with ads; Premium $24.99/mo or $79.99/yr; Premium+ $99.99/yr2 |
Prices are the US figures shown on the vendors' pages on the date above and change without notice.
Where MacroDiet stands, honestly
Reading the table top to bottom: on expenditure, MacroDiet is behind. Its dashboard is designed around the idea — the expenditure page tells you it needs 3 consecutive logged days to start updating and 3 food days plus 1 weigh-in per 7-day period to keep updating — but the engine that performs those updates is still in development, so what you see today is the onboarding estimate. We would rather say that here than have you discover it in week three.
On food data, MacroDiet has a working search, barcode scanning through OpenFoodFacts, and custom foods and recipes. It does not yet have copy-yesterday, favourites with saved portions, or quick-add — the features that make a repeated breakfast a two-tap job.
On target rules, MacroDiet is transparent by design: every number the app sets can be reproduced on the public macro calculator, and the floors and the cap are part of the formula, not a setting you have to find. The same math is documented on the methodology page.
On platform, MacroDiet is a web app. That is a real limitation for gym-bag logging and a real advantage for anyone who wants to check a target without installing anything: the calculators are public, in six languages, with no account.
On price, no payment is taken today. A paid tier is planned, and the onboarding screens say so.
In plain terms: MacroDiet is the right column for someone who wants documented, reproducible targets on the web today and is willing to wait for the adaptive loop; it is the wrong column for someone who needs a native app with weekly self-correction right now.
The short version
Pick a macro tracker by six criteria — expenditure method, food data, logging speed, target rules, platform, price — and weigh them by how long and how often you will log. An adaptive expenditure engine matters over months, not days. Curated food data matters more than database size. Floors and caps in the target rules are the honesty test. This page compares MacroDiet, MacroFactor and MyFitnessPal without a verdict; Zyra builds MacroDiet, and the table shows where it is behind as plainly as where it is not. Educational overview of nutrition tracking tools only — not medical advice.