Best Simple Water Fasting Apps

239+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

Out of 239+ simple water fasting apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Simple Water Fasting Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple: AI Weight Loss CoachSimple: AI Weight Loss CoachFree4.7★ (387K)YesYesJul 2026
2H2 flow water fastingH2 flow water fastingFree3.0★ (4)NoYesJul 2026
3Zero: Fasting & Food TrackerZero: Fasting & Food TrackerFree4.8★ (445K)NoYesJul 2026
4Intermittent Fasting Tracker:Intermittent Fasting Tracker:Free4.9★ (49K)NoYesJul 2026
5BodyFast: Intermittent FastingBodyFast: Intermittent FastingFree4.7★ (144K)YesYesJul 2026
6Fastic Weight Loss & FastingFastic Weight Loss & FastingFree4.8★ (246K)YesYesJul 2026
7Fasting App: Tracker & TimerFasting App: Tracker & TimerFree4.7★ (4.8K)NoYesJul 2026
8Fasting Tracker & Diet AppFasting Tracker & Diet AppFree4.6★ (11K)NoNoJul 2026

Top Picks for Simple Water Fasting

Simple: AI Weight Loss Coach#1

Simple: AI Weight Loss Coach by AM APPS LTD

Build a Healthy Body for Life
Editor's Choice
💪 Health & Fitness
4.7😊(387K ratings)
FreeAdsIn-App Purchases
#86in Health & Fitness
Simple: AI Weight Loss Coach screenshot 1
Simple: AI Weight Loss Coach screenshot 2
Simple: AI Weight Loss Coach screenshot 3
Simple: AI Weight Loss Coach screenshot 4
Simple: AI Weight Loss Coach screenshot 5
Simple: AI Weight Loss Coach screenshot 6

This app offers personalized weight loss plans, real-time nutrition analysis via photo, and AI-driven coaching. It focuses on making healthy habits fun and sustainable without extreme restrictions or calorie counting.

What We Love

  • 🚀 Engaging app
  • 👍 Helpful tools
  • 👍 Supportive IF app
  • 👍 Keeps user accountable

Room to Improve

  • 🐛 Difficulty navigating and logging food/fasting
  • 🐛 Inaccurate food analysis and tracking
  • 🐛 Glitchy and unreliable
H2 flow water fasting#2

H2 flow water fasting by Martijn Nelissen

your water-fast companion
Strong Contender
💪 Health & Fitness
3.0(4 ratings)
FreeIn-App Purchases
H2 flow water fasting screenshot 1
H2 flow water fasting screenshot 2
H2 flow water fasting screenshot 3
H2 flow water fasting screenshot 4
H2 flow water fasting screenshot 5

This app guides users through water fasting with hydration tracking and mindful prompts. It offers science-based tools to support metabolic renewal and help users achieve fasting goals, from short to multi-day protocols.

Zero: Fasting & Food Tracker#3

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

Intermittent Fasting Timer
Worth Considering
💪 Health & Fitness
4.8😊(445K ratings)
FreeIn-App Purchases
#96in 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

More Simple Water Fasting apps to explore

4
Intermittent Fasting Tracker:
Intermittent Fasting Tracker:
Intermittent Fasting Tracker:
Simple 16:8 Fast Timer
Free

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.

Interactive WidgetsNotificationsStreaks & Badges
💪 Health & Fitness
(49K)
free with in-app purchases
5
BodyFast: Intermittent Fasting
BodyFast: Intermittent Fasting
BodyFast: Intermittent Fasting
Weight Loss Diet, Meal Tracker
Free

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.

Personalized fasting plansDaily coaching and motivation100+ recipes for fasting success
💪 Health & Fitness
(144K)
free with in-app purchases
6
Fastic Weight Loss & Fasting
Fastic Weight Loss & Fasting
Fastic Weight Loss & Fasting
Protein, Tracker, Nutrition
Free

This app guides users through personalized intermittent fasting and nutrition plans to achieve sustainable weight loss. It offers features like a food scanner, progress tracking, and a community for support, helping users burn fat and improve overall health.

Personalized fasting and nutrition plansProtein fasting for muscle maintenanceIntermittent fasting for fat burning
💪 Health & Fitness
(246K)
free with in-app purchases
7
Fasting App: Tracker & Timer
Fasting App: Tracker & Timer
Fasting App: Tracker & Timer
Intermittent Fasting for Body
Free

This app guides users through intermittent fasting for weight loss and improved health. It offers simple tracking, personalized plans, and smart notifications to help establish healthy habits without restrictive diets.

Intermittent fasting guidanceWeight loss without restrictive dietsOMAD and 16/8 timer options
💪 Health & Fitness
(4.8K)
free with in-app purchases
8
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
(11K)
free
9
Jeûne Intermittent Easy Fast
Jeûne Intermittent Easy Fast
Jeûne Intermittent Easy Fast
Suivi de jeûne pour tous
Free

This app helps you track intermittent fasting with a simple, ad-free timer. It offers core features for free, with optional Pro upgrades for advanced tracking, widgets, and Apple Watch integration. Your data is kept private with no account required.

Intermittent fasting timerWater tracking with remindersWeight tracking
💪 Health & Fitness
(8K)
freemium
10
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Fasting App: Lose Weight Fast
Free

This app helps users achieve sustainable weight loss and health goals through personalized intermittent fasting plans and an AI-powered calorie counter. It offers features like food scanning, hydration tracking, and detailed progress monitoring. Users can access science-based insights and healthy recipes to support their journey.

Personalized fasting plansAI calorie counter and food loggerWater and hydration tracker
💪 Health & Fitness
(28K)
freemium
11
Intermittent Fasting Skip Meal
Intermittent Fasting Skip Meal
Intermittent Fasting Skip Meal
Fasting Tracker & Weight Loss
Free

This app guides users through personalized intermittent fasting and healthy habits to support weight loss. It focuses on science-backed methods, offering features like fasting tracking, visual progress reports, quick workouts, healthy recipes, mood journaling, and guided meditations.

Advanced fasting trackerVisual progress charts10-minute bodyweight workouts
💪 Health & Fitness
(743)
free with in-app purchases
12
FastEasy: Intermittent Fasting
FastEasy: Intermittent Fasting
FastEasy: Intermittent Fasting
Simple Weight Loss & Tracker
Free

This app guides users through intermittent fasting to achieve weight loss and improve health. It offers customizable fasting plans, a timer, water tracking, and personalized recipes. Track your progress and gain insights into your body's changes.

Customizable fasting plansFasting timer and remindersWater intake tracker
💪 Health & Fitness
(79K)
free with in-app purchases
13
Intermittent Fasting - Fastify
Intermittent Fasting - Fastify
Intermittent Fasting - Fastify
Feel Your Best Without Diets
Free

Track your eating schedule, receive guidance, and enhance your daily fasting experience. Achieve your weight goals, improve health, and increase energy within a supportive community.

Fasting schedule trackingPersonalized fasting plansHealth and energy boost tips
💪 Health & Fitness
(1K)
freemium
14
Prime: Intermittent Fasting
Prime: Intermittent Fasting
Prime: Intermittent Fasting
The fasting app for women
Free

This app offers a tailored intermittent fasting experience for women, featuring a fasting tracker, weight monitoring, and personalized guidance. It helps users achieve fitness goals, manage weight, and understand the health benefits of fasting with a focus on women's specific needs.

Fasting tracker (16:8 protocol)Weight trackerWater tracker with reminders
💪 Health & Fitness
(4.6K)
free with in-app purchases
15
Fastin: Intermittent Fasting
Fastin: Intermittent Fasting
Fastin: Intermittent Fasting
Simple Weight Loss Tracker App
Free

This app guides you through intermittent fasting for weight loss and improved health. It offers personalized plans, tracking tools for food, weight, water, sleep, and activity, along with educational courses on fasting and nutrition. Visualize your progress with detailed statistics to stay motivated on your journey.

Personalized fasting plansFood, weight, water, sleep, and activity trackingFasting and nutrition courses
💪 Health & Fitness
(10K)
subscription
16
Water tracker Waterllama
Water tracker Waterllama
Water tracker Waterllama
My hydration reminder drink it
Free

This app helps you stay hydrated with smart reminders and fun challenges. Track your water intake from various beverages, collect cute characters, and reach your daily hydration goals. It offers personalized recommendations and syncs with Apple Health.

Smart hydration remindersFun healthy challengesCollectible cute characters
💪 Health & Fitness
(150K)
free with in-app purchases
17
Intermittent Fasting Tracker!
Intermittent Fasting Tracker!
Intermittent Fasting Tracker!
Weight Loss: Fast・Easy・No Diet
Free

This app helps you track intermittent fasting for various goals like weight loss, detox, or religious observance. It allows you to set custom fasting levels, receive reminders, and monitor your progress by syncing with health data.

Fasting TimerPersonal Profile TrackingCustomizable Fasting Levels
💪 Health & Fitness
(2K)
free with in-app purchases
18
Window - Intermittent Fasting
Window - Intermittent Fasting
Window - Intermittent Fasting
Fast Tracker & Eating Timer
Free

This app helps you adopt an intermittent fasting lifestyle with science-based guidance and personalized recommendations. Track your fasting and eating periods, monitor weight loss goals, and stay hydrated. Access expert insights and challenges to build healthier habits.

Fasting timerWeight journalWater tracker
💪 Health & Fitness
(11K)
freemium
19
Intermittent Fasting for Men
Intermittent Fasting for Men
Intermittent Fasting for Men
+ Calorie Counter Weight Loss
Free

This app offers a specialized intermittent fasting program for men, combined with tools for weight and calorie tracking. It aims to help users achieve fitness goals, manage weight, and improve overall health through guided fasting protocols and personalized insights.

Fasting tracker with 16:8 protocolCalorie counterWeight tracker
💪 Health & Fitness
(2.5K)
free with in-app purchases
20
Intermittent Fasting Tracker ™
Intermittent Fasting Tracker ™
Intermittent Fasting Tracker ™
Simple intermittent fasting
Free

This app guides users through intermittent fasting with personalized plans, a timer, and insights into body stages. It offers a journal, learning center, and progress tracking to support users in achieving health and wellness goals.

Fasting timer with one-tap start/endPersonalized and custom fasting plansBody stage insights during fasting
💪 Health & Fitness
(2.3K)
free with in-app purchases

FAQ about Simple Water Fasting

What are the best simple water fasting apps for iPhone?
Simple: AI Weight Loss Coach tops our simple water fasting apps ranking as of June 2026, with a 4.7-star average from 387K App Store ratings, and it's free to download.
Yes — 20 of the top simple water fasting apps we rank are free to download, including Simple: AI Weight Loss Coach and H2 flow water fasting.
Simple: AI Weight Loss Coach shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 239+ simple water fasting apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app acts as an AI health coach designed to help users achieve lasting weight loss. It provides personalized plans, real-time nutrition analysis through photo recognition, on-demand coaching, and tailored workouts, all without requiring calorie counting or extreme dietary restrictions.
Key features include personalized coaching from an AI named Avo™, instant food feedback with Avo Vision (photo analysis), easy and personalized beginner-friendly workout plans, and a playful motivational character named Blinky. It also offers a real-time Success Score to track progress and quick logging for food, water, activity, and weight.