Best Simple Fasting Calculator Apps

246+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our simple fasting calculator list covers 246+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Simple Fasting Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple Fasting CalculatorSimple Fasting CalculatorFreeNoNoMay 2026
2Calculator‰Calculator‰Free4.9★ (404K)YesNoAug 2026
3Fasting Tracker & Diet AppFasting Tracker & Diet AppFree4.6★ (12K)NoNoAug 2026
4Simple Fasting TrackerSimple Fasting TrackerFree4.8★ (61)NoYesAug 2026
5Calculator·Calculator·Free4.9★ (33K)YesYesAug 2026
6Intermittent Fasting Tracker:Intermittent Fasting Tracker:Free4.9★ (50K)NoYesAug 2026
7Simple FastingSimple FastingFreeNoNoAug 2026
8Intermittent Fasting - FastifyIntermittent Fasting - FastifyFree4.8★ (1K)NoYesAug 2026

Top Picks for Simple Fasting Calculator

Calculator‰#2

Calculator‰ by Tim O's Studios, LLC

Default Calculator
Strong Contender
🔧 Utilities
4.9😊(404K ratings)
FreeAds
Calculator‰ screenshot 1
Calculator‰ screenshot 2

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

What We Love

  • 👍 Easy to use
  • 👍 Large, clear buttons
  • 👍 Accurate calculations
  • 👍 Simple, no-frills design

Room to Improve

  • 🔍 Lack of advanced features
  • 💰 Ads can be intrusive
  • 🔒 Concerns about security/malware
Fasting Tracker & Diet App#3

Fasting Tracker & Diet App by Hendrik Folkerts

Simple Fast Timer 16:8 & 5:2
Worth Considering
💪 Health & Fitness
4.6😊(12K ratings)
Free
Fasting Tracker & Diet App screenshot 1
Fasting Tracker & Diet App screenshot 2
Fasting Tracker & Diet App screenshot 3

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.

What We Love

  • 🚀 Great app
  • 👍 Simple and easy to use
  • 💡 Helpful for tracking fasting
  • 🚀 Effective for weight loss

Room to Improve

  • 🐛 Cannot edit start/stop times
  • 🐛 Inaccurate fasting history tracking
  • 🐛 Continues running timer after fast ends

More Simple Fasting Calculator apps to explore

4
Simple Fasting Tracker
Simple Fasting Tracker
Simple Fasting Tracker
Intermittent fasting tracker
Free

Easily track your intermittent fasting journey with personalized schedules, goal setting, and progress monitoring. Syncs with Apple Watch and HealthKit for seamless data management. Offers detailed analytics to optimize your fasting.

Quick fast loggingCustomizable fasting schedulesReal-time progress tracking
💪 Health & Fitness
(61)
freemium
5
Calculator·
Calculator·
Calculator·
Big Basic Calculator
Free

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

Basic arithmetic operationsPercentage calculationsMultiple color schemes
🔧 Utilities
(33K)
free with in-app purchases
6
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
(50K)
free with in-app purchases
7
Simple Fasting
Simple Fasting
Simple Fasting
Intermittent fasting aid
Free
💪 Health & Fitness
(0)
8
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
9
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
10
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
11
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
(6.8K)
free with in-app purchases
12
Simple Fasting App
Simple Fasting App
Simple Fasting App
No ads, no data, just fasting!
Free

This app simplifies intermittent fasting with a focus on privacy and ease of use. It offers popular fasting schedules, progress tracking, and smart notifications without ads, subscriptions, or data collection.

Free and privatePopular fasting schedulesProgress tracking
💪 Health & Fitness
(3)
free
13
Intermittent Fasting Tracker®
Intermittent Fasting Tracker®
Intermittent Fasting Tracker®
Fasting Timer, Calorie Tracker
Free
💪 Health & Fitness
(0)
14
EatTimer: Fasting Tracker App
EatTimer: Fasting Tracker App
EatTimer: Fasting Tracker App
Intermittent Fasting, No Diet
Free

This app helps you track your intermittent fasting journey with personalized plans and reminders. Monitor your progress, log weight loss data, and achieve metabolic balance without strict dieting. It supports various popular fasting schedules for all experience levels.

Personalized fasting plansAccurate intermittent fasting trackerFasting and eating reminders
💪 Health & Fitness
(221)
subscription
15
Fasting 168 | Fasting Tracker
Fasting 168 | Fasting Tracker
Fasting 168 | Fasting Tracker
Simple Weight Loss & Tracker
Free
🔧 Utilities
(0)
16
Fasting Center
Fasting Center
Fasting Center
Extended Fasting Calculator
Free

Plan extended fasts with personalized projections. Input your body stats and desired duration to estimate weight change, fat loss, and energy use. This data-driven tool provides a clear starting point for your fasting journey.

Personalized fast planningExtended fast duration optionsProjected weight change
💪 Health & Fitness
(6)
free
17
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Easy Fast Timer, Lose Weight
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
(29K)
freemium
18
EasyFast: Intermittent Fasting
EasyFast: Intermittent Fasting
EasyFast: Intermittent Fasting
Weight loss. Diet tracker.
Free

This app helps you establish intermittent fasting as a healthy habit for weight loss, increased energy, and improved mental clarity. It offers a visual tracker, daily coaching, and flexible plans for all experience levels.

Visual fasting/eating window trackerFlexible fasting schedule adjustmentsStart/end period reminders
💪 Health & Fitness
(26)
free with in-app purchases
19
Intermittent Fasting and Diet.
Intermittent Fasting and Diet.
Intermittent Fasting and Diet.
Eating Timer & Weight Traсker
Free

This app guides you on a journey to a healthier lifestyle by improving your metabolism and aiding in weight loss. It offers tools to track your eating habits, monitor weight, and access informative articles. A personal fasting consultant is available in the paid version.

Fasting timer with tipsAdvanced fasting statisticsCustomized fasting plans
💪 Health & Fitness
(5.3K)
free with in-app purchases
20
Calculator: EasyCalc
Calculator: EasyCalc
Calculator: EasyCalc
Smart Calculator & Converter
Free
🔧 Utilities
(0)

FAQ about Simple Fasting Calculator

Are there free simple fasting calculator apps for iPhone?
Yes — 20 of the top simple fasting calculator apps we rank are free to download, including Simple Fasting Calculator and Calculator‰.
Simple Fasting Calculator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 246+ simple fasting calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.