Best Macro Tracker App (2026): 9 Apps for Protein and Carbs

Counting macros means tracking protein, carbohydrate and fat rather than calories alone. It's popular with people building muscle, losing fat without losing strength, or simply trying to eat more protein, and it's far easier with an app than a notebook.

The nine apps below are listed alphabetically and in no particular order, from coaching apps that adjust your targets to plain trackers that just add up the numbers. Each description comes from the app's own website or store listing, re-checked today. If you're also planning workouts, my notes on back workouts at home pair well with a protein target.

Macro tracking apps compared

In the free plan column, Yes means the app's own site or store listing describes a free app or free version, Trial only means a time-limited trial and No means neither is stated. Free versions often limit barcode scanning, coaching or custom targets.

Tool	Type	Good for	Free plan
Carbon Diet Coach	Macro coaching app	Weekly macro targets that adjust	Yes
Cronometer	Detailed nutrient tracker	Micronutrients as well as macros	Yes
Fitia	Diet planner	Meal plans built around macros	Yes
Foodvisor	Photo food tracker	Logging meals from a photo	Yes
MacroFactor	Macro tracker and coach	Fast logging with smart targets	Trial only
MacrosTracker	Simple macro tracker	No-frills free macro logging	Yes
MyNetDiary	Calorie and macro counter	Verified food entries	Yes
RP Diet Coach	Diet coaching app	Meal-by-meal macro plans	Yes
Yazio	Calorie and macro counter	Macros plus fasting timers	Yes

Nine macro tracking apps

Carbon Diet Coach

Best for: Lifters and dieters who want an app to set macro targets and adjust them each week from weigh-ins.

Cronometer

Best for: Detail-minded trackers who want vitamins and minerals logged alongside protein, carbs and fat from verified food data.

Fitia

Best for: Busy people who would rather follow a suggested meal plan that hits their macros than log every meal from scratch.

Foodvisor

Best for: Anyone who finds manual logging tedious and wants to snap a photo of a plate to estimate its macros.

MacroFactor

Best for: Gym-goers who want quick food logging and targets that adapt to how their weight is trending.

MacrosTracker

Best for: People who want a plain, free place to log meals and see macros without upsells getting in the way.

MyNetDiary

Best for: Members of diet programmes who want verified food entries and macro breakdowns without paying to start.

RP Diet Coach

Best for: Strength athletes who like a meal-by-meal plan of portions rather than one daily macro number to hit.

Yazio

Best for: Dieters who track macros and also follow a fasting window, and want both in one familiar app.

Read the label the way the FDA does

Barcode scanning is only as good as the label behind it, and labels follow rules most people never learn. The FDA's general guide to %DV says 5% DV or less of a nutrient per serving is considered low and 20% DV or more is considered high.

What that means for you: the macros on a label are per serving, not per packet, so check the serving size your app picked matches what you ate. That one check fixes more logging errors than any app feature.

Coaching apps, food diaries and photo loggers

Coaching apps set your macro targets and change them as your weight trends up or down, which suits people who don't want to do the maths. Food diary apps focus on a big, accurate database and leave targets to you. Photo logging apps estimate a meal from a picture, which is quick but less precise, so they suit people who'd otherwise not log at all.

If you lift weights and care about protein, a coaching app usually earns its place. If you just want to see where your calories come from, a free diary is enough.

How to log macros accurately

1. Weigh food raw where you can, and log it the same way every time.
2. Check the serving size on every barcode scan.
3. Save meals you eat often so they're one tap next time.
4. Log cooking oils and sauces; they add up quickly.
5. Look at weekly averages rather than single days.
6. Adjust targets slowly, not after one heavy weigh-in.

When macro tracking isn't a good idea

• A history of disordered eating. Counting can feed unhealthy habits; talk to a professional first.
• Pregnancy or a medical condition. Get targets from your doctor or a dietitian, not an app.
• Burnout. If logging is making you miserable, take a break and eat by habit for a while.
• Children and teenagers. Growing bodies need guidance from a professional, not macro targets.

If you're a trainer setting targets for clients, my guide to AI tools for personal trainers covers planning tools that sit alongside a tracker.

Getting the most from a food database

Databases mix verified entries with ones added by other users, and the user entries are where most errors hide. Where an app marks entries as verified, choose those. When you find a wrong entry, create your own from the label and save it, so every future log is right.

Do you make a macro tracking app? Tool makers can ask to be considered for a featured place on this list.

My plain advice on choosing a macro tracker

Choose the app that makes logging fastest for the way you eat. If you cook the same meals, saved meals and a good database matter most. If you eat out a lot, photo logging and restaurant entries save the day. Speed is what keeps you logging past the second week.

And don't chase perfect numbers. Hitting your protein target most days and keeping fat and carbs roughly in range will get you most of the result; obsessing over every gram is where people burn out and quit.

Frequently asked questions

What is the best app for tracking macros?

The best one is the app you'll use daily. Coaching apps suit people who want targets set for them; food diaries suit people who just want accurate totals.

Is there a free macro tracker?

Yes. Several apps here describe a free app or free version, often with limits on scanning or coaching.

How do I count macros on a food label?

Use the grams per serving for protein, carbs and fat, and check the serving size matches what you ate.

Should I track macros or calories?

Macros include calories, since protein, carbs and fat make up the total. Tracking macros helps if you care about protein or body composition.

Are photo food trackers accurate?

They're quick but less precise than weighing food. Use them when the alternative is not logging at all.

How much protein should I eat?

It depends on your body and goals. Ask a dietitian or your doctor, especially if you have a health condition.