Best Fasting Guide Apps

249+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated August 2026

The best fasting guide apps on iPhone average 4.3★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Fasting Guide Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Zero: Fasting & Food TrackerZero: Fasting & Food TrackerFree4.8★ (445K)NoYesSep 2026
2BodyFast: Intermittent FastingBodyFast: Intermittent FastingFree4.7★ (145K)NoYesSep 2026
3Fasting GuideFasting GuideFreeNoNoMay 2026
4Intermittent Fasting Tracker®Intermittent Fasting Tracker®FreeNoYesJun 2026
5Fasting Tracker & Diet AppFasting Tracker & Diet AppFree4.6★ (12K)NoNoAug 2026
6Fast 16: Intermittent FastingFast 16: Intermittent FastingFree2.5★ (2)NoYesMay 2026
7Orthodox Fasting GuideOrthodox Fasting GuideFreeNoYesJul 2026
8Diet Tracker Life Fasting 16:8Diet Tracker Life Fasting 16:8FreeNoYesMay 2026

Top Picks for Fasting Guide

Zero: Fasting & Food Tracker#1

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

Protein & Calorie Calculator
Editor's Choice
💪 Health & Fitness
4.8😊(445K ratings)
FreeIn-App Purchases
#94in 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

Room to Improve

  • 💰 Expensive premium subscription
  • 🔒 Forced account creation
  • 🙄 Intrusive ads and upsells
BodyFast: Intermittent Fasting#2

BodyFast: Intermittent Fasting by BodyFast GmbH

Track Calories, Macros, Weight
Strong Contender
💪 Health & Fitness
4.7😊(145K ratings)
FreeIn-App Purchases
BodyFast: Intermittent Fasting screenshot 1
BodyFast: Intermittent Fasting screenshot 2
BodyFast: Intermittent Fasting screenshot 3
BodyFast: Intermittent Fasting screenshot 4
BodyFast: Intermittent Fasting screenshot 5
BodyFast: Intermittent Fasting screenshot 6

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.

What We Love

  • 👍 Easy to use
  • 🚀 Helpful for weight loss
  • 💪 Effective for fasting
  • 🔔 Useful reminders and notifications

Room to Improve

  • 🤔 Confusing to adjust fasting times
  • 💰 Expensive subscription
  • 🔒 Difficult to cancel subscription

More Fasting Guide apps to explore

4
Intermittent Fasting Tracker®
Intermittent Fasting Tracker®
Intermittent Fasting Tracker®
Fasting Timer, Calorie Tracker
Free
💪 Health & Fitness
(0)
5
Fasting Tracker & Diet App
Fasting Tracker & Diet App
Fasting Tracker & Diet App
Simple Fast Timer 16:8 & 5:2
Free

Easily manage your intermittent fasting schedule with this simple timer. Track your fasting and meal times, explore various fasting methods, and discover trends in your progress. Maintain a healthy lifestyle with a user-friendly interface.

Track fasting and meal timesChoose from multiple fasting methodsDiscover fasting trends over time
💪 Health & Fitness
(12K)
free
6
Fast 16: Intermittent Fasting
Fast 16: Intermittent Fasting
Fast 16: Intermittent Fasting
Weight & Fasting Tracker App
Free

This app helps you track your fasting periods with a built-in timer and helpful reminders. It provides detailed statistics on your fasting habits and offers resources to learn about healthy fasting practices.

Fasting timerFasting remindersDetailed fasting statistics
💪 Health & Fitness
(2)
free with in-app purchases
7
Orthodox Fasting Guide
Orthodox Fasting Guide
Orthodox Fasting Guide
Calendar, Recipes & Bible Chat
Free
🌟 Lifestyle
(0)
8
Diet Tracker Life Fasting 16:8
Diet Tracker Life Fasting 16:8
Diet Tracker Life Fasting 16:8
Super Quick - Dry Fast Track
Free
💪 Health & Fitness
(0)
9
Fasting - Zero food tracker
Fasting - Zero food tracker
Fasting - Zero food tracker
Simpel & easy fasting tracker
Free

This app helps users track intermittent fasting periods, which involve cycling between eating and fasting. It supports various fasting methods and provides a simple way to monitor eating patterns.

Intermittent fasting trackingSupports daily fastingSupports 24-hour fasting
🌟 Lifestyle
(3)
free
10
Fasting Path:
Fasting Path:
Fasting Path:
Intermittent Fasting Tracker
Free
💪 Health & Fitness
(0)
11
Fasting Secret
Fasting Secret
Fasting Secret
Tracks fasts, weight & ketones
Free

This app helps you track your fasting periods, monitor your weight, and record body measurements. It offers features for manual or scheduled fasts, progress visualization, and motivational tools to support your health and weight loss goals.

Manual and scheduled fasting periodsWeight and body measurement trackingProgress visualization with graphs
💪 Health & Fitness
(1.6K)
free with in-app purchases
12
Intermittent Fasting - MyFast
Intermittent Fasting - MyFast
Intermittent Fasting - MyFast
Zero Calorie Fast Weight Loss
Free

This app helps you manage your intermittent fasting journey by scheduling fasting and eating windows. It offers customizable timers, progress tracking for weight loss and water intake, and educational resources to become an IF expert.

Schedule fasting and eating windowsCustomizable timers with notificationsTrack water intake and weight loss
🍔 Food & Drink
(3.2K)
free with in-app purchases
13
Sunnah Fasting Guide
Sunnah Fasting Guide
Sunnah Fasting Guide
Offline Hijri calendar
Free
📚 Books
(0)
14
Start Fasting Now
Start Fasting Now
Start Fasting Now
Fasting Made Easy & Effective
Free

This app helps users achieve health and weight loss goals through personalized fasting plans. It offers expert guidance, interactive tools, community support, and detailed analytics to make fasting simple and effective.

Personalized fasting plansExpert health guidanceProgress tracking tools
💪 Health & Fitness
(63)
free with in-app purchases
15
Fasting Companion
Fasting Companion
Fasting Companion
Guided Christian fasting
Free
🌟 Lifestyle
(0)
16
Easy Intermittent Fasting
Easy Intermittent Fasting
Easy Intermittent Fasting
Reminders for your fast
Free

This app helps you choose and schedule intermittent fasting routines with automatic reminders. It also provides educational content on fasting methods, contraindications, and feeding tips. You can also calculate your BMI within the app.

Intermittent fasting schedulingAutomatic start/stop remindersFasting method education
💪 Health & Fitness
(0)
ad-supported
17
Fasting Tracker - FastingAI
Fasting Tracker - FastingAI
Fasting Tracker - FastingAI
Metabolic Health & Weight Loss
Free
💪 Health & Fitness
(0)
18
Fastology: Fasting Tracker
Fastology: Fasting Tracker
Fastology: Fasting Tracker
Intermittent & longer fasts
Free

This app provides structured tracking for intermittent fasting, going beyond simple timers. It helps users follow specific fasting schedules with clear phase progress, build consistency through streaks, and manage a flexible weekly plan. Focuses on discipline and reducing guesswork for a clearer fasting experience.

Track various fast types (16:8, OMAD, extended)Live phase-by-phase progress trackingBuild streaks from completed fasts
💪 Health & Fitness
(5)
free
19
Inno Fast: Fasting Made Easy
Inno Fast: Fasting Made Easy
Inno Fast: Fasting Made Easy
Fasting & Weight Loss Tracker
Free

This app helps you achieve health and fitness goals through personalized fasting programs. It offers effortless tracking, custom schedules, and data-driven insights to help you build healthy habits and monitor your progress. Access expert articles to learn more about fasting and its benefits.

Personalized fasting routinesEffortless fasting trackingFasting alerts and reminders
💪 Health & Fitness
(7)
ad-supported
20
Simple Fasting
Simple Fasting
Simple Fasting
Intermittent fasting aid
Free
💪 Health & Fitness
(0)

FAQ about Fasting Guide

What are the best fasting guide apps for iPhone?
Zero: Fasting & Food Tracker tops our fasting guide apps ranking as of August 2026, with a 4.8-star average from 445K App Store ratings, and it's free to download.
Yes — 20 of the top fasting guide apps we rank are free to download, including Zero: Fasting & Food Tracker and BodyFast: Intermittent Fasting.
Zero: Fasting & Food Tracker has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ fasting guide apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Zero is an all-in-one fasting tracker and nutrition app designed to help users achieve real body composition changes. It integrates intermittent fasting timers, protein tracking, meal logging, hydration, and habit tracking to provide a comprehensive approach to weight loss and metabolic health.
Key features include timers and streaks for intermittent fasting, smart meal logging with photo recognition for instant macro and protein analysis, personalized daily protein target tracking, water and habit tracking, and science-based insights from experts on fasting and nutrition.

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