Free
In-App Purchases

Details

  • Released
  • Updated
  • March 11, 2023
  • July 14, 2026

Features

Fit Diesel screenshot #1 for iPhone
Fit Diesel screenshot #2 for iPhone
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About

This app offers personalized nutrition and fitness programs based on your unique biometrics. It aims to rehabilitate your metabolism and help you achieve body goals with sustainable techniques for lifelong health, allowing you to enjoy your favorite foods.

Personalized nutrition programs
Data-driven fitness plans
Metabolic rehabilitation
Biometric analysis
Sustainable health techniques
Targeted exercise coaching
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What's New in Fit Diesel

1.115

July 14, 2026

Food Tracker: - Added redundancy buttons - Corrected Fav Weeks edit - Updated copy/paste

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10

In-App Purchases

$49.99

MACROCoach

Science-based dietary interface

User reviews

Great system

I’ve been using his methods for a couple of years now. When I first started, I followed the Metabolic Build as recommended, and it got my intake up to a little over 4,500 calories per day. That’s significantly higher than what traditional online calculators suggest for my size (usually around 3,100 for maintenance), but I was essentially recomping while doing it.

Overall, it’s a great program if you’re serious about your nutrition. It’s also very easy to input your data and follow consistently.

One issue I’ve run into is communication. I no longer use social media, and from what I’ve found, there’s no way to get in touch with them outside of Instagram or TikTok. But as a side note, when I did have social media, he was very responsive and respectful.

Right now, I’m dealing with a problem in the app related to the macro profile and calorie settings that I haven’t been able to fix. For example, my weekly totals show fat at 4,914, carbs at 16,582, and protein at 4, which obviously doesn’t make sense. When I check the “How Am I Doing” section in the food tracker, the numbers look different (and seem correct), but everything is still showing in red—even though I’ve logged my food for the day.

I’m assuming it’s just a glitch. It’s definitely frustrating, but it doesn’t take away from the effectiveness of his methods. Like anything else, technology has its flaws.
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Macro coach is good, food tracker not so much

Macro coach is great although calories have hardly been adjusted in the time I’ve been using it week to week

My biggest complaint is the food tracker and how it constantly makes you log back in and errors out more time than not. It’s always saying no response from server and then you try again and it’s the same and then you log out log back in and have multiple entries food tracker definitely need some debugging.

Matt is knowledgeable but don’t fall for the I’m almost full urgency sales tactics for 1 on 1 clients
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1:1 coaching

I used the macrocoach for about 6 months and made great progress but I still had some problems working my diet and nutrition out. I signed up for 1 on 1 coaching and stayed on for 2 years. It was well worth the knowledge and expertise provided to me. Working with fitdisel was a great experience, he tailors the program to your needs and understands life happens and helps you work through it. Very responsive to any questions and always has the answers! It has increased my confidence to continue to make progress in my fitness journey and live a healthy lifestyle.
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Fit Diesel is for real!

I started 1/1/23. 223 lbs. currently 185 and have hit 183. The method is fantastic- it works- all you have to do is do the work. Week by week progress will show up if you follow the Macro Coach!!

Trusted by Healthcare Professionals

Dedicate time to researching the development of the app’s nutritional and fitness features. The science behind both will help you reach your goals.

FAQ

What does Fit Diesel do?

Fit Diesel creates personalized nutrition and fitness programs tailored to your unique biometrics. The app focuses on rehabilitating your metabolism and teaching sustainable techniques for lifelong health and happiness, allowing you to achieve your body goals without giving up the foods you love.

How does Fit Diesel personalize programs?

The app uses your unique biometrics to design a data-driven program. This approach optimizes your metabolic performance and ensures the plan is tailored to your individual needs and preferences, including the foods you enjoy.

What kind of support does Fit Diesel offer?

Fit Diesel provides ongoing support and coaching every step of the way. This includes guidance on targeted exercises, food choices, and other tips to help you achieve your best self and maintain long-term health.

Is Fit Diesel free to use?

The application is free to download and use, with in-app purchases available for premium features or services. This allows users to access core functionalities while offering enhanced options for those who wish to invest further in their health journey.

Who is Fit Diesel for?

This app is designed for individuals who believe their health and fitness journey should be as unique as they are. It's for those who want a science-based, personalized approach to nutrition and exercise that considers their metabolism and lifestyle.