Comparison

Carb Manager vs Macro Sync

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

Head to head
About

Carb Manager

Easily track carbs, macros, and calories for low-carb and keto diets. Features include barcode scanning, recipe access, and community support to help you achieve your health goals.

Highlights
  • Net carb tracking
  • Barcode scanner
  • Macro calculator
  • Calorie counter
  • Intermittent fasting tracker
  • Keto recipes
  • Diabetes management tools
Features
Read full description

Stay accountable and make counting carbs and macros simple with Carb Manager! We make it easy to manage low-carb eating, with UNLIMITED free barcode scan, and ALWAYS free net carb tracking. From Keto to Low Carb, Paleo, Carnivore, and more, we help you go beyond counting macros and calories to help you achieve ideal metabolic health with our robust macro tracker, and more! Get the exact tools and resources you need to eat, sleep, feel, age, and perform your best. We make it easy to log each meal: scan your barcodes or snap a pic of your plate to track macros in seconds! If you’re looking for the #1 Keto diet app, we’ve got you covered with free net carb tracking, 5,000+ healthy recipes, monthly challenges to hold you accountable, an intermittent fasting tracker, meal plans, and so much more! Whether you’re brand new to Keto and low-carb diets, or you’re a seasoned pro who’s tired of using generic diet apps and calorie counters that don’t fit the way you eat, we’re excited to welcome you to the Carb Manager family and our one of a kind Keto tracker! CM is your one-stop destination for living a healthy low-carb lifestyle. We've bundled expert-written articles, forums, recipes, a meal planner, an intermittent fasting tracker, a Keto video crash course, a community with weekly challenges to help members lose weight together, and more. Here for diabetes management? You’ll love our diabetic carb counter, trusted by thousands of users to manage carbs and macros. Track blood sugar, ketones, and net carbs. Ready to try intermittent fasting or OMAD? Try our built-in fasting app to track IF times and eating windows & visualize the impact on your weight goals with our intuitive graphs and meal tracker. CORE FEATURES OF OUR DIET TRACKER • Keto calculator: Track net carbs, macros, and more with our Keto food tracker • Macro calculator: Track carbs, fats, & protein • Calorie counter: Use our calorie tracker to set a calorie goal based on body weight & goals • Nutrition tracker: Search 1M+ foods with our easy macro and Keto carb counter, including net carbs and sugar alcohols • Water logging • Exercise logging: Log exercises and workouts, including cardio and weight training • Weight management: Measure and chart weight loss and BMI GET MOTIVATED & EDUCATED • Connect with friends or join our community to share progress & stay accountable • Learn with exclusive articles about topics like the Keto flu, IF & OMAD, different low-carb diets & stay current on the latest news and health research TAKE IT TO THE NEXT LEVEL WITH PREMIUM For the ultimate Low Carb and Keto macro tracker, try CM Premium! • 5,000+ Keto recipes (with 100s added each month!) • Diabetes tracker: Track blood glucose (blood sugar), ketones, and insulin for meals. Diabetes carb counter included! • Fasting app: Explore intermittent fasting or OMAD with our easy fasting tools! • Carb cycling features built into our robust keto diet tracker • Track micronutrients • Advanced reports: Streaks, meals analysis, correlations, benchmarks, projections, and macros analysis • Comprehensive health metrics: Chart and set goals for 30+ nutrients and health vitals • Connect fitness devices to track steps and activity • Weight loss prediction engine • Private groups for family, friends, clients, or social media followers SUBSCRIPTION PRICING & TERMS Carb Manager is always free to download and use! If you choose to upgrade to Carb Manager Premium, we offer an annual subscription with more details in-app. Payment is charged to your iTunes Account at purchase confirmation. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscriptions may be managed and auto-renewal turned off by going to Account Settings after purchase. No cancellation of the current subscription is allowed during the active subscription period. Privacy & TOS: https://www.carbmanager.com/privacy https://www.carbmanager.com/terms

About

Macro Sync

This app simplifies health and fitness by making nutrition tracking easy. Log meals, organize recipes, and monitor calories and macronutrients with proven recommendations. It offers a user-friendly interface with powerful tools for personalized diet management.

Highlights
  • Macro tracking
  • Micro tracking
  • Custom goals
  • Barcode scanner
  • Recipe creator
  • Verified food database
  • Community support
Features
Read full description

Macros Sync simplifies your health and fitness goals without sacrificing the foods you love in a simple, easy way. Macro Sync is your free, user-friendly food-tracking app that centralizes everything you need. Quickly log meals, organize recipes, and see your calories in one place. Designed to streamline your nutrition journey, Macro Sync makes managing your diet effortless and effective. Achieve your goals and enjoy a healthier, happier you with Macro Sync. PROVEN RECOMMENDATIONS Macros Sync creates estimated calorie and macronutrient targets that help you reach your health and fitness goals. Our estimating equations have been used and tested in more than 4 million people and helped hundreds of thousands of individuals reach their goals. We know that your goals change so we have made Macro Sync to fit your changing life. You can change your goals and our technology immediately updates to provide you an updated plan any time, anywhere. SIMPLE, EFFECTIVE TRACKING TOOLS We designed Macro Sync from the ground up based on feedback from hundreds of thousands of individual people. Macro Sync has taken all of the powerful tools you want as a user (custom food entry, searchable database, recipe builder, barcode scanner, etc.) and made them incredibly simple and easy to use. Our tracker takes all of the premium/paid features of other trackers and provides them to you at no cost, including: Macro Tracking Micro Tracking Custom Goals Personalized Food Database Barcode Scanner Recipe Creator Custom meals Ad Free Experience Net Carbs Mode Community Support REAL FOOD DATA We’ve spent decades working with people on tracking food and we know what foods people actually eat. This is the foundation with which we built our food database, which undergoes constant updating. We know that the landscape of food tracking can be daunting, especially when you don’t know what data to trust. This is why we have included verified foods in our database that you can quickly and visibly confirm are verified. Our food database includes: Calories Macronutrients Micronutrients Toggleable net fiber Auto Calorie Calculators Confirmed Serving Sizes Popular Food Brands Barcodes COMMUNITY SUPPORT Macro Sync not only allows you to track your food but also welcomes you to join an already established community of over 500,000 people cultivated by Macros Inc, the developers of Macro Sync. In this free community you will have access to professional coaches who answer questions, provide feedback, and provide immense amounts of free education.

Screenshots

Carb Manager4 screens
Macro Sync4 screens

Verdict

The call

The clearest difference is in-app purchases: Macro Sync at none against Carb Manager's 7. Macro Sync also leads on update cadence (every 4 days vs monthly). Carb Manager's advantage is ratings volume (733K vs 602) and rating (4.8 vs 4.5). On price, ads, monetization model 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. Carb Manager sells 7 in-app purchases, starting at $8.49 per month. Macro Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Carb Manager holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Carb Manager has 733K ratings behind it against 602, so its average is the more settled of the two. Written reviews point the same way: 69% of Carb Manager's written reviews are positive against 58% of Macro Sync's.

UpkeepUpdate frequency

Carb Manager ships an update monthly, Macro Sync every 4 days. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 5 level
Carb Manager versus Macro Sync: the parameters behind the verdict, then further details
ParameterCarb ManagerMacro Sync
PriceFreeFree
Rating4.8 (733K ratings) — better4.5 (602 ratings)
Positive reviews68.6% of reviews — better57.6% of reviews
Number of ratings733K — better602
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree with in-app purchases
Best chart rank#129 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.6 — better16
Further details — not scored
Size42 MB124 MB
Age rating17+12+
DeveloperWombat Apps LLCMacros Inc

Customer experience

Carb Manager

All ratings733,332 ratings
Positive97.5%
Neutral2.0%
Negative0.5%
Written reviews925 reviews
Positive68.6%
Neutral9.3%
Negative22.1%

Macro Sync

All ratings602 ratings
Positive88.0%
Neutral6.0%
Negative6.0%
Written reviews85 reviews
Positive57.6%
Neutral16.5%
Negative25.9%

User reviews

Carb Manager

From 733K App Store ratings

What we love

  • 🚀 Easy to use
  • 🔒 Comprehensive tracking
  • 👍 Helpful for keto/low-carb diets
  • 👍 Useful recipes and meal plans
  • 👍 Syncs with fitness devices

Room to improve

  • 🐛 Inaccurate food database
  • 🐛 Buggy and crashes frequently
  • 🐛 Clunky interface and navigation
  • 🔒 Paywall for many features
  • 👎 Limited metric options (e.g. grams)

Macro Sync

From 602 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Accurate tracking
  • 💡 Customizable macros
  • 🚀 Efficient barcode scanning
  • 👍 Helpful recipe builder

Room to improve

  • 🐛 Crashes and sync issues
  • 🔍 Limited food database
  • 🤔 Confusing UI and navigation
  • 🔍 Inaccurate food entries
  • 🤔 Inability to edit custom entries

Bugs and requests

Carb Manager

Reported bugs

4 issues
  • Incorrect macro and nutrient tracking
  • Syncing issues with fitness devices
  • Inconsistent behavior when editing/adding foods
  • Frequent crashes and app instability

Requested features

6 requests
  • Allow custom recipe creation and saving
  • Improve metric support (e.g. grams, ml)
  • Add dark mode and accessibility features
  • Enhance recipe filtering and search
  • Improve syncing and offline functionality
Show 1 more
  • Better community and social features

Macro Sync

Reported bugs

3 issues
  • Crashes when adding new foods
  • Inability to access previous day's entries
  • Inconsistent nutrition data measurements

Requested features

5 requests
  • Ability to edit custom food entries
  • More advanced nutrition tracking options
  • Personalized daily macro goals
  • Improved barcode scanning reliability
  • Expanded food database

In-app purchases

7 purchases

Carb Manager

Subscriptions6
  • Carb Manager Premium: 1 Month$8.491 Month
  • Carb Manager Premium: 3 Months$16.493 Months
  • Carb Manager Premium: 1 Year$29.991 Year
Show 3 more
  • Carb Manager Premium: 1 Year$39.991 Year
  • Carb Manager Premium$49.991 Year
  • Carb Manager Premium: 1 Year7 Days trial$59.991 Year
One-time1
  • Carb Manager Premium (One Year)$39.99
None

Macro Sync

No in-app purchases

Questions

Is Carb Manager free?
Carb Manager is free to download, with in-app purchases available.
Is Macro Sync free?
Macro Sync is free to download, with no in-app purchases.
Which has better reviews, Carb Manager or Macro Sync?
Carb Manager is rated higher. Carb Manager averages 4.8 out of 5 from 733K ratings, while Macro Sync averages 4.5 from 602 ratings.
Do Carb Manager or Macro Sync have ads?
Neither Carb Manager nor Macro Sync shows ads.
Which is updated more often, Carb Manager or Macro Sync?
Carb Manager ships an update monthly, and Macro Sync every 4 days. Most recently, Carb Manager was updated on September 25, 2026 and Macro Sync on September 23, 2026.

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