Best Water Fasting App

239+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated May 2026

The best water fasting app apps on iPhone average 4.5★ across 239+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Water Fasting App

Fasting Tracker • Easy Fast#1

Fasting Tracker • Easy Fast by Samtark Pty Ltd

Intermittent Fasting Timer
Editor's Choice
💪 Health & Fitness
5.0😊(7.8K ratings)
FreeIn-App Purchases
Fasting Tracker • Easy Fast screenshot 1
Fasting Tracker • Easy Fast screenshot 2
Fasting Tracker • Easy Fast screenshot 3
Fasting Tracker • Easy Fast screenshot 4
Fasting Tracker • Easy Fast screenshot 5
Fasting Tracker • Easy Fast screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 👍 Simple and straightforward interface
  • 🚀 Flexible fasting options
  • 🚀 Detailed fasting progress tracking

Room to Improve

  • 🐛 Occasional app freezes or crashes
  • 🔒 No user account/data sync across devices
  • 🐛 Issues with lock screen/home screen widgets
Zero: Fasting & Food Tracker#2

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

Intermittent Fasting Timer
Strong Contender
💪 Health & Fitness
4.8😊(445K ratings)
FreeIn-App Purchases
#81in 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
H2 flow water fasting#3

H2 flow water fasting by Martijn Nelissen

your water-fast companion
Worth Considering
💪 Health & Fitness
2.3(3 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
H2 flow water fasting screenshot 6

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.

More Water Fasting App apps to explore

4
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
5
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
6
Simple: AI Weight Loss Coach
Simple: AI Weight Loss Coach
Simple: AI Weight Loss Coach
Build a Healthy Body for Life
Free

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.

AI weight loss coachingPhoto-based nutrition analysisPersonalized workout plans
💪 Health & Fitness
(384K)
free with in-app purchases
7
Water Reminder - Daily Tracker
Water Reminder - Daily Tracker
Water Reminder - Daily Tracker
Nutrition & Calorie counter
Free

This app helps you track your daily water intake and reminds you to stay hydrated. It calculates your body's water needs, allows custom drink volumes, and tracks historical consumption. It also supports nutrition tracking and integrates with Apple Health.

Personalized drink notificationsCustomizable drink volumesScheduled reminders
💪 Health & Fitness
(75K)
free with in-app purchases
8
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
(43K)
free with in-app purchases
9
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
10
Suavita: Fasting Tracker App
Suavita: Fasting Tracker App
Suavita: Fasting Tracker App
Intermittent Fasting & Water
Free

This app helps users track various fasting durations, from intermittent routines to multi-day water fasts. It provides timers, reminders, and progress tracking to support users in achieving their fasting goals and building healthy habits. It offers features for both beginners and experienced fasters.

Intermittent fasting trackingLong-term fasting supportCustomizable fasting presets
💪 Health & Fitness
(3.5K)
free with in-app purchases
11
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
12
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
13
Drink water: Drinking reminder
Drink water: Drinking reminder
Drink water: Drinking reminder
Water drinking reminder
Free

This app helps you track your daily water intake and reminds you to drink regularly. It calculates your personalized daily water goal based on your gender and weight, and offers features like a diverse drink menu and smart reminders to help you build healthy hydration habits.

Personalized daily water goal calculationWater intake tracking with historySmart reminders with customizable intervals
💪 Health & Fitness
(22K)
free with in-app purchases
14
Fasting + Intermittent Fasting
Fasting + Intermittent Fasting
Fasting + Intermittent Fasting
Fasting Tracker - Lose Weight
Free

This app helps users achieve weight loss and improve metabolic health through intermittent fasting. It offers personalized plans, progress tracking, and coaching without dietary restrictions.

Advanced fasting and intermittent fasting trackerOver 15 free intermittent fasting plansCustomizable fasting plans
💪 Health & Fitness
(6.6K)
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
Drink Water ∙ Daily Reminder
Drink Water ∙ Daily Reminder
Drink Water ∙ Daily Reminder
Daily Water Tracker & Reminder
Free

This application helps users track their daily water intake and provides timely reminders to ensure they meet their hydration goals. It features a calculator to determine personalized daily water needs based on weight and customizable notifications to prompt drinking throughout the day.

Personalized daily water intake calculatorCustomizable drinking remindersDaily statistics tracking
💪 Health & Fitness
(26K)
freemium
18
Water Fasting App - Easy Fast
Water Fasting App - Easy Fast
Water Fasting App - Easy Fast
16:8, OMAD & eating timer
Free

Track intermittent fasting, calories, and water intake to support your weight loss journey. Offers customizable plans, progress stats, and seamless integration with Apple Health. Enjoy a simple interface with widgets and dark mode.

Intermittent fasting trackingCalorie intake loggingWater consumption monitoring
💪 Health & Fitness
(7)
freemium
19
Plant Nanny Cute Water Tracker
Plant Nanny Cute Water Tracker
Plant Nanny Cute Water Tracker
喝水习惯养成 提醒喝水时间 每日水分追踪补给 减重瘦身计划
Free

This app helps you stay hydrated by reminding you to drink water and allowing you to grow virtual plants. Track your progress with charts and unlock new plants and creatures as you meet your hydration goals.

Grow virtual plantsDaily hydration trackingCustomizable water goals
💪 Health & Fitness
(106K)
free with in-app purchases
20
Intermittent Fasting Tracker・
Intermittent Fasting Tracker・
Intermittent Fasting Tracker・
Fast Timer ・ Easy Weight Loss
Free

Easily track your intermittent fasting with a simple timer and monitor your progress towards health goals. Offers pre-set and custom plans, insights into fasting phases, and a calendar view to review your history and streaks.

Start, pause, and track fasts in real timePre-set and custom fasting programsFasting phase insights
💪 Health & Fitness
(2)
free with in-app purchases

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