DQS Mobile vs Fuelin - Performance Nutrition Usage & Stats
This is the official Racing Weight Diet Quality Score App, now with the ability to save your DQS data for as long as you want and view graphs of your progress over time!
This app allows you to calculate your daily Diet Quality Score (DQS) as described in Matt Fitzgerald's book, Racing Weight.
The Diet Quality Score is a simple instrument that allows athletes to measure the overall quality of their diet. The DQS Mobile app was designed to make it as easy as possible to calculate a Diet Quality Score each day.
As you eat throughout the day, enter the servings of each category of food that you consume. Tap a box to consume one serving of that category, tap it again and it will become a half serving, and one more tap will set it back to zero for that box. You can tap the category name to view an explanation of what foods fall under that category. Your total DQS score for the day is shown in the upper right corner of the page. DQS data is saved for each day you track it.
You can also log your weight and body fat % on the bottom of the Tracking page. We recommend you log your weight no more than once per week.
The Graphs page lets you see how you are doing with your Diet Quality Score over time. You can view your data over the last week, month or year. When viewing yearly data, it is displayed as 52 week-long averages. You can view graphs showing your total DQS, your weight, or your DQS score by specific category.
You can set a target weight, body fat % and a target DQS score on the Profile page.
SUBSCRIPTION INFORMATION:
New users: Start with a 7-day free trial!
- Monthly plan - flexible month-to-month access
- Annual plan - significant savings for committed athletes
Note: Users who previously purchased DQS Mobile maintain access to current features at no additional cost. Thank you for being an early supporter!
Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Payment will be charged to your Apple account at confirmation of purchase after the free trial ends. Subscriptions may be managed and auto-renewal may be turned off by going to your Account Settings after purchase.
- Apple App Store
- Free
- Health & Fitness
Store Rank
- -
Fuel smarter, train stronger, and perform better with Fuelin — the world’s first adaptive nutrition coach built for active individuals. Whether you’re running, cycling, swimming, lifting, or training for your next big race, Fuelin tells you exactly what to eat, when to eat it, and why it matters.
Designed by world-class dietitians and trusted by thousands of athletes and fitness enthusiasts worldwide, Fuelin adapts your nutrition to your training, goals, and lifestyle — taking the guesswork out of eating for performance, health, and recovery.
How Fuelin Makes Nutrition Simple
• Fuelin builds a daily nutrition plan just for you — it automatically adjusts to your workouts. Add them to Fuelin or sync with TrainingPeaks, Final Surge, HumanGO, TriDot, RunDot, or Garmin for personalized guidance.
•Smart Meals (Beta) makes it easy to know what to eat anytime, anywhere—personalized to your goals, training, and preferences.
• Logging food is simple and fast to save you time. Talk or type with our AI logger, scan a barcode, or connect MyFitnessPal and LoseIt — no more tedious tracking.
• Go beyond calories with smarter tools. Stay on top of hydration with our Sweat Rate Tracker and train your gut with Carb Capacity Testing.
• Gain real nutrition skills. Learn portion control, supplement use, and energy balance through in-app lessons and videos designed to build lasting healthy habits.
Why Fuelin?
• Proven results. Thousands have discovered they can recover faster, lose weight, gain muscle, feel healthier, and have more energy for both daily life and race day.
• Simple and personalized. No generic diet rules here. Fuelin adapts every single day to your training, goals, and body.
• Takes out the guesswork. Save time and remove the anxiety of fueling. Fuelin gives you trusted advice so you can fuel with confidence.
• Personalized nutrition and fueling guidance for every sport and race you take on. From running, trail running, cycling, swimming, rowing, sailing, and skiing, to squash, tennis, pickleball, HYROX, CrossFit, marathons, half marathons, triathlons, Gran Fondos, century rides, gravel cycling, criteriums, IRONMAN 140.6 and 70.3, and more — Fuelin adapts your fueling to match your training and goals.
What our members are saying about Fuelin:
"Fuelin is the daily companion to take the guess work out of nutrition that I wish I had earlier in my career.” - Jan Frodeno (3x IRONMAN World Champ)"
"Fuelin has helped me nail my nutrition, not only for my sport, but for my overall health. This app is a game-changer for endurance athletes!" - Colleen Baker (Gravel Cyclist)
"Helps me build awareness and healthy habits, removing the worry and helping me keep on track!" - Rob Castaneda (Age Group Triathlete)
"Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.” - Holly Lawrence (Pro Triathlete)
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Medical Disclaimer: Seek a doctor’s advice in addition to using this app and before making any medical decisions
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
U.S. Barcode Food Database Powered by FatSecret: https://fatsecret.com
International Barcode Food Database Powered by Open Food Facts: https://openfoodfacts.org
- Apple App Store
- Free
- Health & Fitness
Store Rank
- -
DQS Mobile VS. 
Fuelin - Performance NutritionJanuary 9, 2026