Best Fasting Calculator Apps

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated November 2026

The best fasting calculator apps on iPhone average 4.7★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Fasting Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Intermittent Fasting Tracker:Intermittent Fasting Tracker:Free4.9★ (52K)NoYesNov 2026
2Zero: Fasting & Food TrackerZero: Fasting & Food TrackerFree4.8★ (445K)NoYesNov 2026
3Fasting Center: Fast TrackerFasting Center: Fast TrackerFree4.8★ (26)NoNoOct 2026
4Fasting Tracker & Diet AppFasting Tracker & Diet AppFree4.6★ (12K)NoNoNov 2026
5FastHabit Intermittent FastingFastHabit Intermittent FastingFree4.8★ (14K)NoYesNov 2026
6Simple Fasting CalculatorSimple Fasting CalculatorFree—NoNoOct 2026
7Daniel Fast CalculatorDaniel Fast CalculatorFree5.0★ (1)YesYesOct 2026
8Intermittent Fasting Tracker -Intermittent Fasting Tracker -Free4.9★ (29K)YesYesNov 2026

Top Picks for Fasting Calculator

Intermittent Fasting Tracker:#1

Intermittent Fasting Tracker: by Kai Oelfke

Simple 16:8 Fast Timer
Editor's Choice
💪 Health & Fitness
4.9😊(52K ratings)
FreeIn-App Purchases
Intermittent Fasting Tracker: screenshot 1
Intermittent Fasting Tracker: screenshot 2
Intermittent Fasting Tracker: screenshot 3
Intermittent Fasting Tracker: screenshot 4
Intermittent Fasting Tracker: screenshot 5
Intermittent Fasting Tracker: screenshot 6

This app offers a straightforward and private way to track intermittent fasting. It supports iPhone and Apple Watch, providing essential features like widgets, notifications, and progress charts without any advertisements. Ideal for both beginners and experienced fasters, it focuses on a simple user interface to support health and wellness goals.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Straightforward fasting tracking
  • 🔒 No ads or subscriptions
  • 💡 Customizable fasting times
  • 👍 Clean and intuitive interface
  • 🚀 Seamless integration with Apple Health
  • 👍 Helpful fasting stage information
  • 💡 Ability to edit start/end times
  • 👍 Useful statistics and progress tracking

Room to Improve

  • 🐛 Occasional issues with time tracking
  • 💡 Desire for more customization options
  • 💡 Request for monthly/yearly fasting view
  • 💡 Interest in adding notes or logging features
4.8😊(445K ratings)
FreeIn-App Purchases
Zero: Fasting & Food Tracker screenshot 1
Zero: Fasting & Food Tracker screenshot 2
Zero: Fasting & Food Tracker screenshot 3
Zero: Fasting & Food Tracker screenshot 4
Zero: Fasting & Food Tracker screenshot 5
Zero: Fasting & Food Tracker screenshot 6

This app tracks intermittent fasting and nutrition to help users achieve real body composition changes. It integrates fasting, protein intake, meals, hydration, and habits for a holistic approach to weight loss and metabolic health.

What We Love

  • 🚀 Easy to use
  • 📊 Helpful tracking and data
  • 💡 Informative learning resources
  • 🔍 Detailed fasting information
  • 🤝 Sense of community
  • 🎉 Motivating badges and challenges

Room to Improve

  • 💰 Expensive premium subscription
  • 🔒 Forced account creation
  • 🙄 Intrusive ads and upsells
  • 🤔 Inconsistent or confusing UI changes
  • 🐛 Syncing and login issues
  • 🙅‍♀️ Lack of free features
Fasting Center: Fast Tracker#3

Fasting Center: Fast Tracker by Andrey Titov

Intermittent, Extended Fasting
Worth Considering
💪 Health & Fitness
4.8(26 ratings)
Free
Fasting Center: Fast Tracker screenshot 1
Fasting Center: Fast Tracker screenshot 2
Fasting Center: Fast Tracker screenshot 3
Fasting Center: Fast Tracker screenshot 4
Fasting Center: Fast Tracker screenshot 5
Fasting Center: Fast Tracker screenshot 6

Track intermittent and extended fasting with a visual timer and detailed insights into your body's stages. Log various health metrics, view patterns, and utilize helpful calculators for weight and calorie projections. Integrates with Apple Health and offers extensive language support.

More Fasting Calculator apps to explore

FAQ about Fasting Calculator

What are the best fasting calculator apps for iPhone?
Intermittent Fasting Tracker: tops our fasting calculator apps ranking as of November 2026, with a 4.9-star average from 52K App Store ratings, and it's free to download.
Yes — 20 of the top fasting calculator apps we rank are free to download, including Intermittent Fasting Tracker: and Zero: Fasting & Food Tracker.
Intermittent Fasting Tracker: has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ fasting calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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