MacroFactor - Macro Tracker 12+

Diet Sidekick & Macro Tracker

Stronger By Science Technologies LLC

Designed for iPad

    • 4.7 • 549 Ratings
    • Free
    • Offers In-App Purchases



Reach your diet goals with MacroFactor, the smartest macro tracker and diet coach.

Confidently control your nutrition with custom macro plans, dynamic weekly adjustments, and easy food logging.

MacroFactor is a science-backed diet coach and macro tracker app that empowers you with the tools you need to reach your goals without rigidity.


• Get a science-backed macro plan designed for your goals.
• Easily track what you eat with our large, ​​verified food library and feature-rich food logger.
• Smart algorithms make weekly changes to your macro plan, regardless of how close you came to hitting your targets.


• Monitor your energy expenditure and learn how many calories you’re burning.
• View detailed breakdowns of macronutrient intake (leucine, fiber, omega-3s, etc), micronutrient intake (vitamins and minerals), and more.
• Connect your health apps through our FitBit, Google Fit, and Apple Health integrations.


With MacroFactor, you don’t have to eat like a robot, and you’ll never be shamed for the choices you make.

MacroFactor’s weekly adjustments are based on logged caloric intake, weight change, and our energy expenditure calculation. Unlike other diet coach apps, you don’t have to perfectly adhere to your targets to get smart adjustments to your plan.

In addition, you’ll never see red numbers or shaming when you go over your calorie or macro targets, unlike in other macro tracker apps.


1. Answer a few questions about your goals and lifestyle.
2. MacroFactor will design a customized macro plan for you based on the latest science and your preferences.
3. Log your weight and the foods you eat daily.
4. MacroFactor dynamically adjusts your macro plan based on how your body is responding.
5. You reach your goal in an evidence-based, sustainable way.


Create a custom macro plan
• Choose from Coached, Collaborative, and Manual program styles
• Choose from low-carb, keto, performance, or balanced diet preferences
• Set different calories and macros on training and non-training days
• Set fasting days

Set goals and get dynamic adjustments
• Lose, maintain, or gain weight
• Set target weight and rate at which you’d like to gain or lose
• Get evidence-based, weekly adjustments

Quick and accurate macro tracker
• Large, verified food database
• Barcode scanner
• Copy/paste foods, meals, and entire days
• Custom foods and recipes
• Smart history that remembers what you eat and when
• “AI describe” enables logging via your voice or plain text
• Timeline-style food log doesn’t lock you in to a certain number of meals
• Metric and imperial options

Track both macronutrients and micronutrients
• Your custom macro plan includes protein, fat, and carbohydrate targets
• Track micronutrients (vitamins and minerals)
• Track alcohol, caffeine, water, leucine, and more

User-focused design
• Visualization for weight trends, energy expenditure, and habits
• Extensive Knowledge Base
• Data privacy
• Export your data
• Dark mode
• Period tracking
• Integrations with FitBit, Google Fit, and Apple Health
New Section


MacroFactor is a premium app that offers three auto-renewing subscription options:
$11.99 / month
$47.99 / half year
$71.99 / year (equal to $5.99 a month)

MacroFactor has a free trial, but does not offer a free subscription tier.

These prices are for US customers. Pricing in other countries may vary. Payment will be charged to your Apple account at confirmation of purchase.

Your subscription to MacroFactor will automatically renew, unless you disable auto-renew at least 24 hours before the current period ends. You can turn off auto-renew or manage your subscription from your Apple account settings.

Terms & Conditions:

Privacy Policy:

What’s New

Version 1.4.4

* Bug fix for a rare scenario with new history items

Ratings and Reviews

4.7 out of 5
549 Ratings

549 Ratings

JustSnilloc ,

MacroFactor does everything it’s competitors do (and more), but better.

MacroFactor is what happens when some really smart people take an honest look at their competition, absorb what is useful, discard what isn’t, and add what is uniquely their own. Taking inspiration from apps such as MyFitnessPal, Chronometer, Carbon, and RP Diet, MacroFactor does everything these competitors do (and more), but better.

Whether your goal is to gain, maintain, or lose weight, prepare to feel empowered with a level of dietary precision that you never thought to be possible. Even better, enjoy the flexibility that the app provides in moving towards your goals without being made to feel bad about deviations from the plan, big or small. If weight fluctuations have ever robbed you any peace of mind, MacroFactor’s weight trending feature will restore it.

This app sought to be the best and (for myself at least) it’s accomplished that very thing. I cannot recommend MacroFactor enough. The team behind it is continually looking for ways to make it even better and they are highly responsive. Take control of your diet or general nutrition with MacroFactor, your only regret will be that you didn’t start sooner.

Developer Response ,

Thank you so much! We sincerely appreciate your feedback, and we're glad you're having such a positive experience with MacroFactor. We have some ambitious plans in store, and we're glad you're along for the ride.

david.parker83 ,

Visually stunning and scientifically superior

As a long time user of MFP, I’m pretty set in my ways on food logging. I use a spreadsheet to track weekly weight and calorie averages, more or less giving me an idea of my expenditure. I was absolutely blown away at how superior this app is to both MFP and my spreadsheet. When I’m doing a super slow bulk to gain muscle over 6 months, it is tricky to stay in that surplus sweet spot. This app has a much more sophisticated (and evidence based) algorithm to keep me where I need to be, looking back further than 7 days (my old spreadsheet) and doing more nuanced trending. And the food logger is super intuitive and fast, avoids many of the silly adherence shaming tactics that other apps use. Like saying I’m “bad” for going over my calories during a bulk 🧐…not with this app. These guys are super smart, can’t wait to see things continue to evolve. Hopefully they don’t get rushed into implementing too many changes and slowly release thoroughly tested updates. I’m sure it will continue to get even better though. Great work!

Developer Response ,

Thanks so much, David! We're thrilled to hear that you're having such a great experience with MacroFactor, and we really appreciate the feedback.

msussman22 ,

Tracking App for Everyone

This app hits the nail on the head. I’ve used a number of other tracking apps.m, and generally they are all the same but MacroFactor stands out because it doesn’t judge you for how you get to your numbers or if you are over your numbers. Plus it uses real science to help build and maintain a customized plan just for you.

Figuring out where you need to be at maintenance is one of the hardest things to do. There are tons of formulae out there to figure out TDEE but they all rely on you figuring out how active you are. Is 10,000 steps a day considered active enough that I need to bump my calories up? How does lifting weights affect that number? MacroFactor breaks it down and then gives you a number you can completely ignore. It reassess everything regularly to help you be more in tuned with how to hit your goals and it doesn’t shame you for eating 1 calorie over your target.

No more red and green to indicate you are doing well. As Eric Trexler says “you are paying me to be your coach.” MacroFactor isn’t there to tell you that you did something wrong, it’s there to provide you with data and allow you to be on top of your needs to achieve your goals.

The last thing I want to say about MacroFactor is that it is the only app out there that really helps you gain and maintain and not just cut weight. You could be a beginner just starting out or someone with a ton of experience but this app helps simplify things. Best money I ever spent!

Developer Response ,

Thanks so much! I think you just mentioned virtually every problem we were trying to solve with MacroFactor, so we appreciate the feedback, letting us know we're headed in the right direction

App Privacy

The developer, Stronger By Science Technologies LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Purchases
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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