Best Fasting Timer Apps

249+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Intermittent Fasting Tracker is the household name in fasting timer, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Fasting Timer Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Intermittent Fasting Tracker:Intermittent Fasting Tracker:Free4.9★ (51K)NoYesSep 2026
2Fasting Timer by TrainerDayFasting Timer by TrainerDayFree5.0★ (12)NoNoAug 2026
3Zero: Fasting & Food TrackerZero: Fasting & Food TrackerFree4.8★ (445K)NoYesSep 2026
4Fasting Tracker App by NumifyFasting Tracker App by NumifyFree4.7★ (5.6K)NoYesSep 2026
5JustFast - TimerJustFast - TimerFree5.0★ (1)NoNoAug 2026
6Fasting Tracker • Easy FastFasting Tracker • Easy FastFree5.0★ (8.6K)NoYesSep 2026
7Window - Fasting TimerWindow - Fasting TimerFree5.0★ (1)NoYesJun 2026
8Fasting Tracker & Diet AppFasting Tracker & Diet AppFree4.6★ (12K)NoNoSep 2026

Top Picks for Fasting Timer

Intermittent Fasting Tracker:#1

Intermittent Fasting Tracker: by Kai Oelfke

Simple 16:8 Fast Timer
Editor's Choice
💪 Health & Fitness
4.9😊(51K 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
Fasting Timer by TrainerDay#2

Fasting Timer by TrainerDay by TrainerDay Inc

One Tap Fasting
Strong Contender
💪 Health & Fitness
5.0(12 ratings)
Free
Fasting Timer by TrainerDay screenshot 1
Fasting Timer by TrainerDay screenshot 2
Fasting Timer by TrainerDay screenshot 3
Fasting Timer by TrainerDay screenshot 4
Fasting Timer by TrainerDay screenshot 5

This app simplifies intermittent fasting with a one-tap start and customizable durations. Track your progress visually and review your fasting history. It's designed for easy habit building without complex features.

Zero: Fasting & Food Tracker#3

Zero: Fasting & Food Tracker by Zero Longevity Science, Inc.

Track Diet, Protein & Calorie
Worth Considering
💪 Health & Fitness
4.8😊(445K ratings)
FreeIn-App Purchases
#100in Health & Fitness
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

More Fasting Timer apps to explore

FAQ about Fasting Timer

What are the best fasting timer apps for iPhone?
Intermittent Fasting Tracker: tops our fasting timer apps ranking as of September 2026, with a 4.9-star average from 51K App Store ratings, and it's free to download.
Yes — 20 of the top fasting timer apps we rank are free to download, including Intermittent Fasting Tracker: and Fasting Timer by TrainerDay.
Intermittent Fasting Tracker: has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ fasting timer apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you track your intermittent fasting periods with a simple interface. It provides essential features like interactive widgets, notifications, streaks, badges, charts, and trends to help you stay on track with your fasting goals. It is designed to be privacy-friendly with no ads or account sign-up required.
Key features include interactive widgets for quick access, customizable notifications to remind you of your fasting windows, streak tracking and badges to motivate you, detailed charts and trends to monitor your progress, fasting zones, iCloud sync for data backup, and a dark mode option for comfortable viewing.

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