Comparison

Greg Plitt vs Carbon

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

Head to head
About

Greg Plitt

Access over 500 hours of fitness videos, including offline viewing. Create and share custom workouts, track your progress, and get workout reminders. Features include an interactive body map and a 90-day transformation calendar.

Highlights
  • Over 500 hours of video content
  • Offline video viewing
  • Create and share custom workouts
  • Workout calendar with alerts
  • Track workout results
  • Interactive body map
  • 90 Day Transformation Calendar
Features
Read full description

Greg Plitt official fitness app. "Greg Plitt's Physique Greatest of All Time" - Muscle & Fitness **Appeared on over 400 Magazine Covers. **Graduate of West Point, an Army Ranger, Captain. Features: ** Over 500 hours of video content + Watch Video's OFFLINE. ** CREATE SUPERSETS & Share Custom Workouts with Friends. ** Add workouts to a calendar and get alerts when workout is due. ** Every Greg Plitt Workout cut down so you can workout along with him and track your results. ** Customize, Copy and Create your own workouts. ** Interactive Body Map. ** 90 Day Transformation Calendar. ** Gut Check, The Challenge + More FREE Features. ** Music Player!! Now you can listen to motivational songs with Greg's voice as you workout. If you are new to Greg Plitt, you may view preview videos and access to some features of the app, in order to unlock all features of the app such as full workout videos you must be a paid subscriber, if you choose to upgrade, your subscription will be charged $2.99/week or $9.99/mth through your iTunes Account as a recurring transaction. Payment will automatically renew unless you cancel your account at least 24 hours before the end of the current subscription week. You can manage your subscription, cancel anytime, or turn off auto-renewal by accessing your iTunes account. Greg Plitt's Privacy Policy: https://gregplitt.com/privacy-policy/ Greg Plitt's Terms of Use: https://gregplitt.com/terms/

About

Carbon

This app acts as a personalized nutrition coach, helping you track your food intake and weight to adjust your calorie and macro targets. It provides weekly check-ins with clear explanations for any changes made to your plan, supporting various dietary goals like fat loss or muscle gain.

Highlights
  • Adaptive macro coaching
  • Personalized calorie and macro targets
  • Weekly weight trend analysis
  • Flexible calorie planner
  • Smart food logging with photo recognition
  • Support for various diet styles
Features
Read full description

The macro tracker that coaches you. Carbon Diet Coach is a nutrition coach and calorie tracker in one. Log your food, weigh in, and check in once a week. Carbon reviews your weight trend and what you logged, decides whether your targets should change, and explains every decision. Carbon pioneered adaptive macro coaching, and thousands of members use it to lose fat, build muscle, maintain, and reverse diet. HOW WEEKLY COACHING WORKS • Answer a few questions about your goal, body, and preferences • Get personalized calorie, protein, carb, and fat targets • Log your food and weigh in, or sync your weight from Apple Health • Check in weekly. Carbon looks at your multi-week weight trend and what you actually logged, then adjusts your macros or holds them steady • Read a clear check-in report, so you're never left wondering why Carbon did or didn't make a change • Pick your check-in day, or check in early when your schedule changes PROTEIN BUILT AROUND YOU Your protein target is based on your lean body mass, with an optimal range for your goal and diet style. Research links higher protein intake during fat loss to keeping more lean mass, so Carbon keeps protein front and center all week. FLEXIBLE CALORIE PLANNER The Calorie Planner works like a weekly calorie budget. Give yourself more calories for weekends, dinners out, and events, and fewer on quieter days, while your week stays on target. • Finished days reflect what you actually tracked, and the rest of your week rebalances around them • Hold protein keeps your protein target steady while daily calories shift • Adjust calories, protein, carbs, and fat for any upcoming day, or reset a day to your weekly defaults COACHING WITH GUARDRAILS When progress stalls, Carbon makes small changes instead of big cuts, keeps your rate of loss in check, and sets a calorie floor for you. If you reach it, Carbon recommends a switch to maintenance or a reverse diet. If your week wasn't fully tracked, Carbon won't react to incomplete data. SMART LOGGING Smart Logger: snap a photo of your meal or describe it, and Carbon matches each food to an entry in our verified food database. You review the matches, confirm your servings, and log the whole plate at once. Smart Suggestions: foods you log often are pre-filled in your diary. Tap to confirm or skip. Remaining Macros: see what's left for the day and preview how a food fits before you log it. Serving Amount Solver: enter the macros you have left and Carbon finds the serving that fits. Plus a barcode scanner, nutrition label scanner, quick add, copy meals, favorites, and custom foods and recipes. GOALS AND DIET STYLES Fat loss, muscle gain, weight maintenance, and reverse dieting. Choose Balanced, Low Carb, Low Fat, Keto, Plant-Based, or High Protein then fine-tune each macro within recommended ranges. PROGRESS YOU CAN SEE Charts for weight, body fat, lean body mass, calories, macros, and estimated metabolic rate, plus a check-in history showing every adjustment and why. ALREADY HAVE YOUR OWN TARGETS? Use Carbon as a macro, protein, and nutrition tracker, calorie counter, and food log. SUPPORT FROM REAL PEOPLE Questions go to Carbon's support team, and members share tips in our private community. BUILT ON EVIDENCE Created by Dr. Layne Norton (PhD, Nutritional Sciences) and Keith Kraker, RD. SUBSCRIPTIONS Monthly, 6-month, and yearly plans. Every plan includes full access to all features. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings. Payment is charged to your Apple Account when you confirm your purchase. Food database powered by FatSecret: https://fatsecret.com Terms and Conditions: https://joincarbon.com/terms-and-conditions/ Privacy Policy: https://joincarbon.com/privacy-policy/

Screenshots

Greg Plitt1 screens
Carbon4 screens

Verdict

The call

The clearest difference is monetization model: Carbon at free with in-app purchases against Greg Plitt's subscription. Carbon also leads on rating (4.8 vs 4.3) and review sentiment (79% vs 53%). Greg Plitt's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Greg Plitt sells 3 in-app purchases, starting at $2.99 per 7 days and Carbon sells 9 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

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 38, so its average is the more settled of the two. Written reviews point the same way: 53% of Greg Plitt's written reviews are positive against 79% of Carbon's.

UpkeepUpdate frequency

Greg Plitt ships an update every 6 weeks, Carbon weekly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 4 level
Greg Plitt versus Carbon: the parameters behind the verdict, then further details
ParameterGreg PlittCarbon
PriceFreeFree
Rating4.3 (38 ratings)4.8 (8.1K ratings) — better
Positive reviews52.8% of reviews79.4% of reviews — better
Number of ratings388.1K — better
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank—#117 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size44 MB105 MB
Age rating17+17+
DeveloperQuest Productions, LLCReform LLC

Customer experience

Greg Plitt

All ratings36 ratings
Positive80.6%
Neutral2.8%
Negative16.7%
Written reviews36 reviews
Positive52.8%
Neutral8.3%
Negative38.9%

Carbon

All ratings8,144 ratings
Positive95.9%
Neutral1.4%
Negative2.7%
Written reviews452 reviews
Positive79.4%
Neutral6.4%
Negative14.2%

Bugs and requests

Greg Plitt

Not enough reviews yet to summarise bugs or 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

In-app purchases

3 purchases

Greg Plitt

Subscriptions3
  • Membership$2.997 Days
  • Membership$9.991 Month
  • Membership7 Days trial$9.991 Month
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

Questions

Is Greg Plitt free?
Greg Plitt is free to download, with in-app purchases available.
Is Carbon free?
Carbon is free to download, with in-app purchases available.
Which has better reviews, Greg Plitt or Carbon?
Carbon is rated higher. Greg Plitt averages 4.3 out of 5 from 38 ratings, while Carbon averages 4.8 from 8.1K ratings.
Do Greg Plitt or Carbon have ads?
Neither Greg Plitt nor Carbon shows ads.
Which is updated more often, Greg Plitt or Carbon?
Greg Plitt ships an update every 6 weeks, and Carbon weekly. Most recently, Greg Plitt was updated on November 2, 2026 and Carbon on November 6, 2026.

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