Carbon - Macro Coach & Tracker

In-app purchases
2.93K reviews
Content rating
PEGI 3
100K+
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Content rating
PEGI 3
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About this app

Carbon Diet Coach is your nutrition solution for results that LAST. Whether your goal is to lose fat, build muscle, improve your metabolism, or simply maintain your weight, Carbon Diet Coach removes the guesswork.

Carbon Diet Coach is a science-based nutrition app designed by renowned nutrition coaches Dr. Layne Norton (Ph.D. Nutritional Sciences) and Registered Dietitian Keith Kraker (BS Dietetics).

It does everything a normal nutrition coach would but at a fraction of the cost. Simply select your goal, answer a few short questions, and it does the rest! You will get a customized nutrition plan based on YOUR goals and metabolism.

What's more, Carbon will adjust the plan as you progress to optimize your results. If you hit a plateau or stall, Carbon will make adjustments to keep you progressing towards your goal, just like any good coach would. Our coaching system uses the latest techniques in nutrition science to make sure you get the best results possible.

All you need to do is follow these simple steps:

• Log your food using the built-in food tracker
• Log your body weight
• Check-in each week

Do that and Carbon does the rest!

Carbon Diet Coach can do things other nutrition coaching apps can’t do. For example, your nutrition plan can be tailored to your diet preference:

• Balanced
• Low Carb
• Low Fat
• Ketogenic
• Plant-Based

Each setting is completely customizable so that you receive a plan that is sustainable for YOU!

Another feature that makes Carbon unique is the diet planner. Want high and low-calorie days rather than eating the same foods every day? Use the diet planner to set up your week and stay on track. Overate on one day and not sure what to do with your nutrition plan for the rest of the week? Adjust the diet planner to account for what you overate and Carbon does the rest!

Other coaching features include:

• Adjustable check-in days
• Check-in explanations so you're never left wondering why the app did or didn’t make a change
• Check-in history so you can look back and see why the app made various adjustments
• Charts showing your weight, body fat, lean body mass, calorie intake, protein intake, carbohydrate intake, fat intake, and metabolic rate
• Early check-in feature for those who can’t always check in on their specified day
• Goal tracker so you can see the progress you’ve made and how close you are to your goal
• Recommendations after you reach a goal so you can plan for what's next and KEEP your results

Already know what you are doing with nutrition and don’t need Carbon to coach you? No problem, you can enter your nutrition targets and simply use the food tracker. Beyond the amazing coaching features of this app is a food tracker that's excellent in its own right. Its features include:

• A huge food database
• Barcode scanner
• Quick add macros
• Copy meals
• Favorite foods
• Create custom foods
• Create custom recipes

No matter what your goal is, Carbon Diet Coach is your solution.

Food database powered by FatSecret:
https://fatsecret.com
More than a food tracker. Your diet & health coach for any lifestyle.
Updated on
Aug 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Personal info, App activity and 2 others
  • This app may collect these data types
    Personal info, Photos and videos and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

2.89K reviews
Scott Ohlms
August 20, 2026
Lets first establish what this app is: It is NOT *just* a food logging app. It is also a coaching app that adjusts your intake for you week to week based on your goals and results. Every time I've thought this app was great, it went on to get even better. There are so many options for customizing things that I haven't even used it all yet. Easily one of the best value apps out there.
2 people found this review helpful
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Reform LLC
August 26, 2026
Thank you for such a thoughtful review, Scott! You really captured what we want Carbon to be. Food tracking is important, but the real value comes from having a coach that learns from you and guides what comes next. We love that you've seen the app improve over time. There’s always more we want to make better! Thanks for being along for the ride!
Melissa Ramos
September 15, 2026
So far I have been able to lose 50 lb of fat with this app. i went from 256 to 205 in about 10 months. It helps me stay consistent and gives me a lot of nutrition knowledge, so even when I'm not tracking (vacation makes it hard) I'm still able to make good choices and stay on track. Love the new update too.
1 person found this review helpful
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Reform LLC
September 16, 2026
Melissa, 50 pounds in 10 months is amazing! We especially love that Carbon has helped you build nutrition knowledge you can use even when you aren’t tracking. Being able to enjoy a vacation and still feel confident in your choices is a huge win. Congrats on your progress, and we’re glad you’re loving the new updates, too!
Lee Wilson
August 7, 2026
I've never been so compliant with tracking macros. By being absolutely honest with the app, it seems like magic how it adjusts my targets and supports me towards my physique goals. Adaptable for all diet types, easy to track and whatever the algorithms are doing in the background, they're almost magical.
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Reform LLC
August 11, 2026
Thank you so much for this! We love hearing that being honest and consistent with your tracking has helped Carbon really work the way it’s designed to. The adaptive coaching is built to respond to your progress over time, so hearing that it feels almost “magical” when the targets adjust is pretty great. We really appreciate you sharing this!

What’s new

Smart logger
Smart diary suggestions
Most used serving amounts
Food usage log history
Remaining macros toolbar
Serving amount calculator