Comparison

Carbon vs Zero Shortcuts Training

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Carbon

This app provides personalized nutrition plans for weight loss, muscle gain, or maintenance. It adapts your plan as you progress and offers a comprehensive food tracker with a large database and barcode scanner. It supports various diet preferences and allows for custom meal planning.

Highlights
  • Personalized nutrition plans
  • Adaptive plan adjustments
  • Comprehensive food logging
  • Barcode scanner
  • Diet preference customization
  • Diet planner for flexible eating
Features
Read full description

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 ∙ Integrates with Apple Health to automatically read Body Weight and Body Fat values 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. Simple. Scientific. Sustainable. App Subscriptions: ∙ Monthly ∙ 6 Months ∙ Yearly The subscription period will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. To turn this function off, simply go to your iTunes account and turn off auto-renew. Renewal payments will differ depending on subscription and pricing at the time of renewal. Your iTunes account will be charged when the purchase is confirmed. Food database powered by FatSecret: https://fatsecret.com Terms and Conditions: https://joincarbon.com/terms-and-conditions/ Privacy Policy: https://joincarbon.com/privacy-policy/

About

Zero Shortcuts Training

Log your workouts, view upcoming sessions, and book appointments directly within the app. Track your progress and maximize the benefits of your training program.

Highlights
  • Log workouts
  • View logged workouts
  • See upcoming scheduled workouts
  • Book appointments
  • Track progress
Features
Read full description

Log your Zero Shortcuts Training workouts from anywhere with the Zero Shortcuts Training workout logging app! View your logged workouts, see upcoming scheduled workouts, and book appointments inside the app. Track your progress and get the most out of your Zero Shortcuts Training workouts! If you enjoy the Zero Shortcuts Training app, we’d really appreciate if you took a second to leave a nice review because it helps us improve and also helps get the word out. Thank you!!

Screenshots

Carbon4 screens
Zero Shortcuts Training4 screens

Verdict

The call

The clearest difference is in-app purchases: Zero Shortcuts Training at none against Carbon's 9. Zero Shortcuts Training also leads on iOS requirement (13.0 vs 16.6). Carbon's advantage is rating (4.8 vs 4.3) and update cadence (weekly vs every 9 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Carbon sells 9 in-app purchases, starting at $11.99 per month. Zero Shortcuts Training asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Carbon holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Carbon has 8.1K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Carbon ships an update weekly, Zero Shortcuts Training every 9 months. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.

Scorecard7 real differences · 4 level
Carbon versus Zero Shortcuts Training: the parameters behind the verdict, then further details
ParameterCarbonZero Shortcuts Training
PriceFreeFree
Rating4.8 (8.1K ratings) — better4.3 (3 ratings)
Positive reviews79.4% of reviews—
Number of ratings8.1K — better3
Update frequencyWeekly — betterEvery 9 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#114 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size106 MB57 MB
Age rating17+4+
DeveloperReform LLCErica Villani

Customer experience

Carbon

All ratings8,002 ratings
Positive95.9%
Neutral1.4%
Negative2.6%
Written reviews452 reviews
Positive79.4%
Neutral6.4%
Negative14.2%

Zero Shortcuts Training

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

Bugs and requests

Carbon

Reported bugs

2 issues
  • Occasional app crashes or freezes
  • Issues with resetting account data

Requested features

4 requests
  • Add water intake tracking
  • Improve barcode scanning functionality
  • Allow more flexibility in macro adjustments
  • Integrate with fitness trackers

Zero Shortcuts Training

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Carbon

Subscriptions9
  • Monthly Subscription$11.991 Month
  • Monthly Subscription7 Days trial$11.991 Month
  • Monthly Subscription14 Days trial$11.991 Month
Show 6 more
  • Six Month Subscription$59.996 Months
  • Six Month Subscription7 Days trial$59.996 Months
  • Six Month Subscription14 Days trial$59.996 Months
  • Yearly Subscription$99.991 Year
  • Yearly Subscription7 Days trial$99.991 Year
  • Yearly Subscription14 Days trial$99.991 Year
None

Zero Shortcuts Training

No in-app purchases

Questions

Is Carbon free?
Carbon is free to download, with in-app purchases available.
Is Zero Shortcuts Training free?
Zero Shortcuts Training is free to download, with no in-app purchases.
Which has better reviews, Carbon or Zero Shortcuts Training?
Carbon is rated higher. Carbon averages 4.8 out of 5 from 8.1K ratings, while Zero Shortcuts Training averages 4.3 from 3 ratings.
Do Carbon or Zero Shortcuts Training have ads?
Neither Carbon nor Zero Shortcuts Training shows ads.
Which is updated more often, Carbon or Zero Shortcuts Training?
Carbon ships an update weekly, and Zero Shortcuts Training every 9 months. Most recently, Carbon was updated on October 30, 2026 and Zero Shortcuts Training on October 21, 2026.

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