Comparison

BodyFast vs Zero Fast

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

Head to head
About

BodyFast

This app guides users through intermittent fasting to achieve weight loss, improve health, and boost energy. It offers personalized plans, daily coaching, recipes, and tools like a water tracker and weight log. Users can choose from various fasting plans and track their progress towards their health goals.

Highlights
  • Personalized fasting plans
  • Daily coaching and motivation
  • 100+ recipes for fasting success
  • Weight and body measurement tracking
  • Water intake tracker
  • Fasting stages and knowledge pool
  • Weekly health and fitness challenges
Features
Read full description

The #1 fasting app with more than 50 million installs! BodyFast accompanies you day by day on your journey to your goals. Reach your goal weight, get healthy and feel full of energy. THE BODYFAST APP • Intermittent fasting for beginners and experienced fasters • A personalized fasting plan from the BodyFast Coach every week • Tailored to your goals and progress • Daily coaching for motivation, knowledge and tips • 100+ recipes - developed for your fasting success • Know what you're eating - with our food facts • Weight tracker and body measurements • Drink enough water with the water tracker • Weekly challenges for better health and more physical activity FREE FEATURES • More than 10 customizable fasting plans • Fasting timer including reminders • Track your weight and body measurements • Fasting stages: See what's happening in your body while fasting • Water tracker • Knowledge pool for intermittent fasting THE BODYFAST COACH Reach your goals 30% faster! The BodyFast Coach calculates the optimal fasting plan for you every week. It also motivates you with challenges and tips for a healthier life. With over 100 cooking recipes you'll accelerate your weight loss success. • A new, simple fasting plan every week from the BodyFast Coach • Your personalized program based on your progress and goals • Daily coaching with knowledge, tips and motivation • 100+ delicious recipes specially tailored for fasting • Our food facts show you what you're eating • Weekly personalized health and fitness challenges • Save your favorite plans or create your own fasting schedule • Get instant SOS help from BodyFast's team of experts • Unlock all fasting plans • Collect trophies for your achievements • Take a "Joker Day" off from fasting INTERMITTENT FASTING WITH BODYFAST • It has never been easier to lose weight and feel great • Become slim and healthy with simple breaks from eating • You can eat what you want - no calorie counter needed • No diet, no yoyo-effect • Develop healthy habits • Improve your relationship with food • Compatible with any diet such as keto, paleo, and low carb • Ideal also for water fasting and lent SCIENTIFIC STUDIES • Intermittent fasting is the most natural and healthiest way for fat loss • You strengthen your immune system • The body learns anew to burn fat • Your body starts detox processes while fasting • You live healthier and have more energy • You prevent numerous illnesses like diabetes • Compatible with fitness workouts and weight training Losing weight has never been easier - without a diet! Find out more about the science behind intermittent fasting on www.bodyfast.app. BECOME A BODYFASTER NOW BodyFast works! Join our Facebook group and connect with 220,000+ members. Have a try and download the app for free! BodyFast Intermittent Fasting website: http://www.bodyfast.app Contact: https://help.bodyfast.app/hc/requests/new BodyFast Privacy Policy: https://my.bodyfast.app/privacy-app BodyFast General Terms and conditions: https://my.bodyfast.app/terms INFORMATION ON USING THE APP AND REGARDING THE SUBSCRIPTION The download and use of the BodyFast app is free of charge. Full access to all available Coach features is limited to subscribers. There are different terms to choose from. If you opt for a subscription, you will pay the price set for your country and displayed in the app. If you don't cancel the subscription at least 24 hours before the end of the current term, it will automatically renew for the originally selected period and your deposited payment method will be charged. You can also disable the auto-renew feature in your App Store account settings.

About

Zero Fast

This app guides you through intermittent fasting, indicating when your body enters fat-burning and ketosis. It offers group challenges for motivation without requiring calorie counting or strict diets.

Highlights
  • Intermittent fasting timer
  • Fat-burning and ketosis indicators
  • Group fasting challenges
  • No calorie counting
  • Meal planner integration
Features
Read full description

Your fast, explained as it happens. Zero Fast times your fast, shows you the moment your body switches to fat-burning and ketosis, and lets you race friends in group challenges. No calorie counting. No strict diets.

Screenshots

BodyFast4 screens
Zero Fast4 screens

Verdict

The call

The clearest difference is review sentiment: Zero Fast at 100% against BodyFast's 42%. Zero Fast also leads on rating (5.0 vs 4.7) and update cadence (every 2 weeks vs every 5 weeks). BodyFast's advantage is ratings volume (146K vs 1) and iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and monetization model 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. BodyFast sells 13 in-app purchases, starting at $8.49 per month and Zero Fast sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Zero Fast holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: BodyFast has 146K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 42% of BodyFast's written reviews are positive against 100% of Zero Fast's.

UpkeepUpdate frequency

BodyFast ships an update every 5 weeks, Zero Fast every 2 weeks. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
BodyFast versus Zero Fast: the parameters behind the verdict, then further details
ParameterBodyFastZero Fast
PriceFreeFree
Rating4.7 (146K ratings)5.0 (1 ratings) — better
Positive reviews42.1% of reviews100.0% of reviews — better
Number of ratings146K — better1
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size120 MB41 MB
Age rating12+12+
DeveloperBodyFast GmbHAPPE LATTE LIMITED

Customer experience

BodyFast

All ratings146,269 ratings
Positive93.2%
Neutral3.2%
Negative3.7%
Written reviews922 reviews
Positive42.1%
Neutral7.0%
Negative50.9%

Zero Fast

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

BodyFast

Reported bugs

3 issues
  • Notifications not working properly
  • Data loss or sync issues
  • Crashes or freezes

Requested features

5 requests
  • Integration with health/fitness apps
  • More flexibility in setting fasting schedules
  • Personalized coaching options
  • Food logging and nutrition tracking
  • Apple Watch app

Zero Fast

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

BodyFast

Subscriptions13
  • Coach subscription 1 month$8.491 Month
  • Coach subscription 1 month$11.991 Month
  • Coach subscription 1 month$13.491 Month
Show 10 more
  • Coach subscription 1 month$16.991 Month
  • Coach subscription 3 months$17.493 Months
  • Coach subscription 1 month$18.991 Month
  • Coach subscription 3 months$24.493 Months
  • Coach subscription 3 months$27.993 Months
  • Coach subscription 3 months$34.993 Months
  • Coach subscription 12 months$34.991 Year
  • Coach Subscription 3 months$39.993 Months
  • Coach subscription 6 months$54.996 Months
  • Coach subscription 12 months$69.991 Year
2 purchases

Zero Fast

Subscriptions2
  • Zero Fast Monthly$3.991 Month
  • Zero Fast Annually$29.991 Year

Questions

Is BodyFast free?
BodyFast is free to download, with in-app purchases available.
Is Zero Fast free?
Zero Fast is free to download, with in-app purchases available.
Which has better reviews, BodyFast or Zero Fast?
Zero Fast is rated higher. BodyFast averages 4.7 out of 5 from 146K ratings, while Zero Fast averages 5.0 from 1 ratings.
Do BodyFast or Zero Fast have ads?
Neither BodyFast nor Zero Fast shows ads.
Which is updated more often, BodyFast or Zero Fast?
BodyFast ships an update every 5 weeks, and Zero Fast every 2 weeks. Most recently, BodyFast was updated on October 31, 2026 and Zero Fast on October 30, 2026.

Other comparisons