Best Free Fasting Calculator Apps

4.7(18 ratings)

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.

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

Track Diet, Protein & Calorie

Strong Contender

4.8😊(445K ratings)

FreeIn-App Purchases

Zero: Fasting & Food Tracker screenshot 1

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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

Intermittent Fasting Tracker: by Kai Oelfke

Simple 16:8 Fast Timer

Worth Considering

Fasting Tracker & Diet App

4.9😊(51K ratings)

FreeIn-App Purchases

Intermittent Fasting Tracker: screenshot 1

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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

More Free Fasting Calculator apps to explore

Simple Fast Timer 16:8 & 5:2

Track fasting and meal timesChoose from multiple fasting methodsDiscover fasting trends over time

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.

Fastic Weight Loss & Fasting

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free

Protein, Tracker, Nutrition

Personalized fasting and nutrition plansProtein fasting for muscle maintenanceIntermittent fasting for fat burning

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.

(246K)

FastEasy: Intermittent Fasting

Simple Weight Loss & Tracker

Customizable fasting plansFasting timer and remindersWater intake tracker

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.

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Fasting Tracker App by Numify

Intermittent Fasting Timer

Intermittent fasting guidanceWeight loss without restrictive dietsOMAD and 16/8 timer options

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.

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Simple Fasting Calculator

BodyFast: Intermittent Fasting

Track Calories, Macros, Weight

Personalized fasting plansDaily coaching and motivation100+ recipes for fasting success

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.

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Intermittent Fasting Tracker -

Easy Fast Timer, Lose Weight

Personalized fasting plansAI calorie counter and food loggerWater and hydration tracker

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.

Track Your Fasting Journey

(29K)

freemium

Fastee:Fasting Tracker

This app offers a comprehensive suite of calculators for everyday tasks and advanced mathematical needs. It includes tools for finance, unit conversion, health, and time calculations, all within a user-friendly interface.

Scientific calculator functionsPercentage and discount calculationsLoan and savings calculators

📚 Education

(2)

ad-supported

Fastify - Fasting Weight Loss

Intermittent fasting timer

Intermittent Fasting Tracker®

(0)

Fasting Timer, Calorie Tracker

Smart fasting timer with Live ActivitiesSupports popular fasting protocolsAI-powered calorie and nutrition tracker

Manage your eating habits with customizable intermittent fasting plans. Track calories using AI food scanning and monitor progress with Live Activities. This app supports various fasting protocols and integrates with Apple Health to help you build healthier lifestyle habits.

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(2)

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Fasting 168 | Fasting Tracker

Simple Weight Loss & Tracker

Fast Timer & Bible Verses

🔧 Utilities

(0)

Daniel Fast Calculator

Fastin: Intermittent Fasting

(0)

Simple Weight Loss Tracker App

Personalized fasting plansFood, weight, water, sleep, and activity trackingFasting and nutrition courses

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.

Simple Fasting Timer - 16:8

(10K)

subscription

No account. Offline tracker

A fasting record tool

Fasting Made Easy & Effective

Personalized fasting plansExpert health guidanceProgress tracking tools

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.

(63)