Comparison

Keto Diet App - Carb Tracker vs Fast

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

Head to head
About

Keto Diet App - Carb Tracker

This app acts as your personal keto coach, offering a powerful macro tracker with hundreds of recipes and diet tips. Easily log food using voice recognition or a barcode scanner, and receive a custom weight loss plan to reach your goals faster.

Highlights
  • Automatic macro calculator
  • Carb and calorie counter
  • Personalized weight loss plan
  • Voice recognition food logging
  • Barcode scanner for food entry
  • Nutrition tracker
  • Keto recipe library
Features
Read full description

Keto Diet App - your personal keto coach and powerful macro tracker. Hundreds of keto recipes, diet tips and guidance, all in the palm of your hand! Tracking food has never been so easy - simply type the name, or use the barcode scanner and voice recognition technology! Get your custom weight loss plan today and reach your goals faster! KEY FEATURES: • Automatic macro calculator: just add your parameters! Our fats, carbs and protein tracker will do the work for you! • Carb manager + calorie counter: never exceed your daily limit again • Personalised weight loss plan: lose weight at your own pace • Food journal: track what you eat with our voice recognition technology & barcode scanner: no more manual search! • Nutrition tracker: stay on top of all your vital nutrients to feel great and avoid keto flu • Learn about all types of keto, carb cycling and much more. Our Insights section is filled with articles written by top health experts • Keto recipes for everyone! Choose from our extensive library of recipes or create your own with our recipe keeper • Grocery list: explore a full list of keto foods • Live support from a team of professional keto coaches • Apple Health integration: water tracker, step counter, sleep monitor and weight loss tracker • Weight loss tracker: keep yourself accountable and make progress photos as you advance • Easy to use interface, designed for both beginners and advanced keto dieters VOICE YOUR DIET Tracking food has never been so easy! Instead of searching for the required ingredient or meal manually - just use our voice recognition feature! The rest is on us. CALCULATE YOUR MACROS Keto is all about tracking your macros. Our app offers you a personalized macro calculator! We track your protein, fat, carbs and calories automatically. All you have to do is enter your data, goal, and tell us the foods you ate during the day. Additionally, you can: • keep an eye on your macros + calorie intake, • review your food log, • check your nutrient levels. HEALTH APP INTEGRATION Keto Diet App integrates the following data from the Health app (HealthKit) to provide personalized content, including step counter, water tracker, sleep and weight loss tracker. SUBSCRIPTION INFORMATION Keto Diet App is free to download. The upgrade to Premium gives you access to voice input, free typing input, barcode scanning feature, live support, full recipe and insights library. Should you choose to upgrade to a Premium Membership, payment will be charged to your iTunes account at confirmation of purchase. Your subscription renews automatically unless canceled at least 24 hours prior to the end of the current period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Cancellation of the current active subscription period is not allowed. Auto-renewal may be turned off in your Account Settings in iTunes after purchase. You can also manage your subscriptions in Account Settings after purchase. Note: This app is developed for informational purposes only. You must always consult your physician or doctor before starting any diet program. For more information please visit the link https://support.apple.com/en-us/HT202039 Privacy Policy: http://myketo.care/pp Terms of Use: http://myketo.care/tc CONTACTS Please, contact us should you have any questions, concerns or proposals - we are open to a discussion. We would highly appreciate if you share your app experience with friends and diet buddies! Thank you very much in advance. support@myketo.care

About

Fast

This app helps you track intermittent fasting routines, monitor progress, and analyze health data. It offers educational content, motivational challenges, and a journal to record your feelings. Connect with friends for support and motivation on your wellness journey.

Highlights
  • Fasting timer and tracker
  • Progress analytics and history
  • Educational 'Know It' section
  • Motivational challenges and trophies
  • Mood tracker and journal
  • Health app integration (steps)
  • Fasting buddy feature
Features
Read full description

Fast: Fasting Tracker & Timer helps you build consistent fasting habits with flexible fasting plans, body weight logging, water intake tracking, reminders, and detailed progress insights. Whether you're new to intermittent fasting or already following a routine, the app provides the tools to stay organized and work toward your personal health and wellness goals. Choose a fasting plan, customize your schedule, and track every fast in one place with an easy-to-use fasting tracker. FASTING PLANS Find a fasting schedule that works for your lifestyle. Choose from 12:12, 13:11, 14:10, 15:9, 16:8, 17:7, 18:6, 19:5, 20:4, 21:3, 22:2, 23:1, MWF, TTS, or create your own custom fasting plan. Whether you're starting intermittent fasting or maintaining an existing routine, you can choose a plan that suits your goals. FASTING TRACKER & TIMER Track active and completed fasts with an intuitive fasting tracker and timer. Review your fasting history and monitor your consistency over time. BODY WEIGHT & WATER TRACKING Log your body weight and monitor changes throughout your fasting routine. Track your daily water intake to stay hydrated and build healthier habits alongside your fasting schedule. SMART REMINDERS Stay on schedule with fasting reminders and water intake reminders. Customize notifications to help you start and end your fasting window on time while maintaining your daily hydration routine. ANALYTICS & HISTORY Review your fasting sessions, body weight, hydration logs, activity, and history with easy-to-understand analytics that help you monitor your progress and stay consistent. INFORMATIVE BLOGS Learn more about intermittent fasting through informative blogs covering healthy habits, wellness topics, and practical guidance to help you better understand your fasting routine. FASTING BUDDIES Stay motivated by fasting together. Invite friends, track each other's progress, and encourage one another throughout your fasting journey with the Buddy feature. ACTIVITY SUPPORT Sync your activity data to keep your fasting progress and daily activity organized in one place for a more complete overview of your routine. Whether you're following a 16:8 fasting schedule, exploring different intermittent fasting plans, or creating a custom fasting routine, Fast: Fasting Tracker & Timer gives you the tools to stay organized and build lasting healthy habits. DISCLAIMER This app is intended for informational and lifestyle purposes only and does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before starting any fasting routine, especially if you have an existing medical condition, are pregnant, or have specific dietary requirements. PRIVACY POLICY https://maximaapps.com/fasting/privacy_policy.html TERMS OF USE https://maximaapps.com/fasting/terms-of-use.html GET IN TOUCH Have questions, feedback, or suggestions? We'd love to hear from you. Contact us through the app or email us at feedback@maximaapps.com.

Screenshots

Keto Diet App - Carb Tracker4 screens
Fast4 screens

Verdict

The call

The clearest difference is update cadence: Keto Diet App - Carb Tracker at every 2 weeks against Fast's every 2 months. Keto Diet App - Carb Tracker also leads on ratings volume (82K vs 3.3K) and iOS requirement (15.0 vs 18.6). On price, rating, review sentiment and ads 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. Keto Diet App - Carb Tracker sells 7 in-app purchases, starting at $9.99 per month and Fast sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Keto Diet App - Carb Tracker against 4.7 for Fast. That said, the two scores are not equally well evidenced: Keto Diet App - Carb Tracker has 82K ratings behind it against 3.3K, so its average is the more settled of the two. Written reviews are what separate them: 68% of Keto Diet App - Carb Tracker's written reviews are positive against 75% of Fast's.

UpkeepUpdate frequency

Keto Diet App - Carb Tracker ships an update every 2 weeks, Fast every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Keto Diet App - Carb Tracker versus Fast: the parameters behind the verdict, then further details
ParameterKeto Diet App - Carb TrackerFast
PriceFreeFree
Rating4.7 (82K ratings) — better4.7 (3.3K ratings)
Positive reviews68.1% of reviews74.6% of reviews — better
Number of ratings82K — better3.3K
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.0 — better18.6
Further details — not scored
Size165 MB116 MB
Age rating12+12+
DeveloperFJOR NUTRITION, INC.Maxima Apps

Customer experience

Keto Diet App - Carb Tracker

All ratings82,195 ratings
Positive93.0%
Neutral3.6%
Negative3.4%
Written reviews1,256 reviews
Positive68.1%
Neutral6.1%
Negative25.8%

Fast

All ratings3,300 ratings
Positive91.8%
Neutral4.8%
Negative3.5%
Written reviews189 reviews
Positive74.6%
Neutral10.6%
Negative14.8%

User reviews

Keto Diet App - Carb Tracker

From 82K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Helpful for tracking macros
  • 🚀 Accurate food logging
  • 💡 Useful insights and information
  • 👍 Great for beginners

Room to improve

  • 🐛 Inconsistent food database
  • 🐛 Inaccurate calorie/carb calculations
  • 💡 Lacks integration with fitness trackers
  • 💡 Limited recipe options and customization
  • 💡 Difficult to add and manage own recipes

Fast

From 3.3K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Helpful for weight loss
  • 👍 Motivating with trophies
  • 👍 Customizable fasting plans
  • 👍 Integrates with health apps

Room to improve

  • 🐛 Timer issues/inaccuracies
  • 🐛 Inability to edit fasting times
  • 🐛 Syncing/data saving problems
  • 🐛 Crashes and glitches
  • 🔍 Lacking advanced features

Bugs and requests

Keto Diet App - Carb Tracker

Reported bugs

3 issues
  • Barcode scanner not working consistently
  • App crashes or freezes on some devices
  • Subscription issues and difficulty cancelling

Requested features

5 requests
  • Water intake tracking
  • Ability to share/sync data with others
  • More robust food database with international options
  • Improved recipe management and customization
  • Integration with fitness apps and devices

Fast

Reported bugs

3 issues
  • Timer not accurately recording fasting times
  • Inability to update weight in app
  • Crashing when trying to view friend's status

Requested features

4 requests
  • Option to edit fasting start/end times
  • More detailed analytics and progress tracking
  • Improved syncing and data saving reliability
  • Expanded customization options

In-app purchases

7 purchases

Keto Diet App - Carb Tracker

Subscriptions7
  • Keto Diet App Premium2 variants$9.991 Month
  • Keto Diet App Premium2 variants$14.991 Month
  • Keto Diet App Premium$19.991 Month
Show 4 more
  • Keto Diet App Premium$29.991 Year
  • Keto Diet App Premium2 variants$39.991 Year
  • Keto Diet App Premium$49.991 Year
  • Keto Diet App Premium$69.991 Year
8 purchases

Fast

Subscriptions6
  • Fast Premium Monthly$4.991 Month
  • Fasting Monthly$14.991 Month
  • Fasting Annually$19.991 Year
Show 3 more
  • Fasting Premium$27.993 Months
  • Fast Premium Yearly$29.991 Year
  • Fasting Premium Yearly$39.991 Year
One-time2
  • Fasting One Time Special Offer$19.99
  • Fasting Pro$49.99

Questions

Is Keto Diet App - Carb Tracker free?
Keto Diet App - Carb Tracker is free to download, with in-app purchases available.
Is Fast free?
Fast is free to download, with in-app purchases available.
Which has better reviews, Keto Diet App - Carb Tracker or Fast?
Keto Diet App - Carb Tracker is rated higher. Keto Diet App - Carb Tracker averages 4.7 out of 5 from 82K ratings, while Fast averages 4.7 from 3.3K ratings.
Do Keto Diet App - Carb Tracker or Fast have ads?
Neither Keto Diet App - Carb Tracker nor Fast shows ads.
Which is updated more often, Keto Diet App - Carb Tracker or Fast?
Keto Diet App - Carb Tracker ships an update every 2 weeks, and Fast every 2 months. Most recently, Keto Diet App - Carb Tracker was updated on November 1, 2026 and Fast on October 29, 2026.

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