Comparison

Intermittent Fasting vs Fasting Center

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

Head to head
About

Intermittent Fasting

This app helps you track intermittent fasting, guiding you through different biological stages like ketosis and autophagy. It offers personalized insights and progress monitoring without requiring an account or collecting your data. Stay motivated with features like body score, streaks, and smart notifications.

Highlights
  • Private intermittent fasting tracker
  • Real-time biological stage tracking
  • Body score for progress monitoring
  • Apple Watch app and widgets
  • HealthKit sync
  • Customizable fasting protocols
Features
Read full description

Burn is an intermittent fasting tracker that shows exactly what your body is doing, hour by hour. Start a fast in one tap and watch fat burning, ketosis and autophagy arrive in real time. WHAT MAKES BURN DIFFERENT Most fasting apps give you a countdown. Burn gives you the biology behind it. As your fast progresses you can see glycogen dropping, fat burning starting, ketosis beginning and autophagy switching on. When you can see the stages, every hour feels earned. SEE EVERY FASTING STAGE Follow your fast through Fed, Catabolic, Fat Burning, Ketosis and Autophagy on a live timeline, so you always know where you are and what comes next. Stages are educational estimates built to keep you motivated and consistent. ONE SCORE FOR EVERY FAST Body Score combines your fasting consistency and your weight trend into a single number. Instead of judging progress by the scale alone, you get a clearer view of whether your routine is actually moving in the right direction. EVERY PLAN, FROM BEGINNER TO ADVANCED 16:8 to start and learn the rhythm 18:6 and 20:4 when you are ready to go deeper OMAD for one meal a day Extended and open-ended fasts with no time cap Custom windows for any schedule that fits your life ALWAYS IN VIEW Home Screen and Lock Screen widgets Live Activities and Dynamic Island Apple Watch app and complications Smart notifications at the moments that matter HealthKit sync and iCloud backup Dark Mode TRACK WHAT CHANGES Log your weight, review every completed fast, build streaks, hit personal records and watch your trends over weeks and months rather than days. FREE TO START The core fasting timer is free with no usage limits. Burn Pro unlocks Body Score, Apple Watch, widgets, advanced insights and analytics, history editing, progress trends and personal records. Whether this is your first 16:8 or your fiftieth extended fast, Burn stays out of the way and lets the timer do the talking. Download Burn and start your next fast. IMPORTANT INFORMATION Burn is a health and fitness tracking tool. It does not provide medical advice, diagnosis or treatment. Fasting stages, insights and health information are educational estimates only. Speak with a qualified healthcare professional before starting a fasting routine, especially if you have a medical condition, are pregnant, underweight, have a history of eating disorders, or take medication. Privacy Policy: https://wraithbit.com/burn-privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download Burn and start your next fast.

About

Fasting Center

Track intermittent and extended fasting with a visual timer and detailed stage insights. Log key health metrics, analyze patterns, and utilize helpful calculators. Integrates with Apple Health and offers extensive customization.

Highlights
  • Customizable fasting plans
  • Visual progress ring
  • 17 fasting stages with explanations
  • Health metric logging (weight, ketones, etc.)
  • Pattern analysis and charts
  • Extended and intermittent fasting calculators
  • Apple Health integration
Features
Read full description

Fasting Center is a fasting timer and tracker for intermittent and extended fasting. Start a fast, watch the ring fill, see which stage your body is in, and keep your numbers in one place. Fast your way - Plans from 12:12 to 23:1 (OMAD), extended fasts of 24, 36, 48 and 72 hours, an open fast with no end, or a specific end time - A live ring that shows time elapsed, time left or percent. Tap the ring to switch - Change the start or end time whenever you need to - Milestone notifications and a reminder before your fast ends - A celebration when you finish, with your mood, a note and a picture of your fast to share Know what is happening - 17 fasting stages, from digestion to refeeding, and what each one means - Tips that make fasting easier - The scientific sources behind the stages and the calculators Log what matters - Weight, body fat, waist, ketones, blood glucose and blood pressure - Energy, hunger, motivation and anxiety on a scale of 1 to 10 - Calories, water, sodium, potassium and magnesium - Daily notes, and past fasts you add by hand - Apple Health - read weight, body fat, steps, heart rate and glucose, and write weight and body fat back See your patterns - A fasting calendar, charts of your fasting hours, recent fasts and streaks - Trends for your measurements and how you feel, and your BMI - Patterns found in your own data, such as when you feel hungriest Calculators - Extended fasting - estimate the weight you lose in a fast of 1 to 40 days, split into fat, protein, water and gut contents, with a refeeding guide - Intermittent fasting and calorie deficit - set a goal weight or daily calories and see a day-by-day projection Everywhere you look - Home screen widgets, a Live Activity on the Lock Screen and in the Dynamic Island, and an Apple Watch app with complications - Dark mode, accent colors, and pounds, kilograms or stones - Sixteen languages: English, Spanish, German, French, Portuguese, Italian, Polish, Turkish, Ukrainian, Russian, Japanese, Korean, Arabic, Indonesian, Urdu and Bengali - Import fasts from Easy Fast or Zero, and export your data to Excel - Use it without an account, or sign in with email, Google or Apple to sync between your devices Important Fasting Center is for general wellness and education. It is not medical advice. Extended fasting is not right for everyone, especially if you are pregnant, breastfeeding, under 18, underweight, or have a medical condition such as diabetes or a history of eating disorders. Talk to your doctor before you start. Weight and body composition projections are estimates, not predictions.

Screenshots

Intermittent Fasting4 screens
Fasting Center4 screens

Verdict

The call

The clearest difference is review sentiment: Fasting Center at 100% against Intermittent Fasting's 50%. Fasting Center also leads on rating (4.8 vs 3.8) and in-app purchases (none vs 2). 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. Intermittent Fasting sells 2 in-app purchases, starting at $6.99 per month. Fasting Center asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fasting Center holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 8 and 27 respectively. Written reviews point the same way: 50% of Intermittent Fasting's written reviews are positive against 100% of Fasting Center's.

UpkeepUpdate frequency

Intermittent Fasting ships an update every 8 days, Fasting Center every 3 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
Intermittent Fasting versus Fasting Center: the parameters behind the verdict, then further details
ParameterIntermittent FastingFasting Center
PriceFreeFree
Rating3.8 (8 ratings)4.8 (27 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings827 — better
Update frequencyEvery 8 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size24 MB51 MB
Age rating4+12+
DeveloperWraithBit, IncAndrey Titov

Customer experience

Intermittent Fasting

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Fasting Center

All ratings27 ratings
Positive92.6%
Neutral3.7%
Negative3.7%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Intermittent Fasting

Subscriptions2
  • Burn Pro Monthly$6.991 Month
  • Burn Pro Annual14 Days trial$29.991 Year
None

Fasting Center

No in-app purchases

Questions

Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Is Fasting Center free?
Fasting Center is free to download, with no in-app purchases.
Which has better reviews, Intermittent Fasting or Fasting Center?
Fasting Center is rated higher. Intermittent Fasting averages 3.8 out of 5 from 8 ratings, while Fasting Center averages 4.8 from 27 ratings.
Do Intermittent Fasting or Fasting Center have ads?
Neither Intermittent Fasting nor Fasting Center shows ads.
Which is updated more often, Intermittent Fasting or Fasting Center?
Intermittent Fasting ships an update every 8 days, and Fasting Center every 3 days. Most recently, Intermittent Fasting was updated on October 31, 2026 and Fasting Center on November 5, 2026.

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