10 Best Apps for Intermittent Fasting Tracking

Finding the best intermittent fasting apps can turn a complex schedule into a simple, automated routine that fits your lifestyle. In 2026, the market has moved beyond simple timers to include AI-driven nutrition coaching and biological clock synchronization. These digital tools help you stay accountable by providing real-time data on your metabolic state and progress. Using a dedicated tracker ensures you maintain consistency while gaining deep insights into how fasting affects your energy and weight.

How We Selected Our 10 Options For The Best Intermittent Fasting Apps

Our selection process involved a rigorous evaluation of the most popular fasting tools available in 2026. We focused on apps that offer a balance between technical precision and user-friendly design. Below are the specific criteria and metrics we used to rank these selections.

The 10 Best Intermittent Fasting Apps

Upgrading your health journey is significantly easier when you have the right technology at your fingertips. Here is our detailed breakdown of the top apps currently leading the industry.

1. Zero

Zero is widely considered the world most popular choice for tracking fasts and building healthy habits. It offers a sleek interface that syncs your fasting window with your biological clock or local sunset times. The app provides detailed statistics on your metabolic health and helps you visualize your progress through clear charts. It also features an extensive library of articles and videos from world-class doctors and researchers.

• Best features: Fasting zones that show your metabolic milestones in real time.

• Pros: Highly polished interface and seamless integration with Apple Health.

• Things to consider: Many of the most advanced insights are locked behind a premium subscription.

2. Simple

Simple lives up to its name by offering a minimalist and intuitive approach to fasting and nutrition. It features an AI personal assistant named Avo that provides daily guidance and answers your nutrition questions. The app tracks your food, water, and exercise alongside your fasting window for a holistic health view. It is particularly effective for beginners who want a gentle entry into intermittent fasting without feeling overwhelmed.

• Best features: Avo AI assistant for personalized nutrition advice and recipes.

• Pros: Very easy to navigate and includes a visual food diary.

• Things to consider: The premium subscription can be more expensive than other basic trackers.

3. Fastic

Fastic focuses heavily on the community aspect of fasting to keep users motivated and engaged. It offers various challenges that you can join with friends to earn trophies and stay accountable. The app includes over 400 healthy recipes designed to fuel your body correctly during your eating window. It also features a step counter and water tracker to help you maintain a balanced lifestyle throughout the day.

• Best features: Social community “Circles” for shared motivation and challenges.

• Pros: Large recipe library and fun gamified elements like trophies.

• Things to consider: The frequent notifications can be distracting for some users.

4. DoFasting

DoFasting acts as a comprehensive personal health assistant that combines fasting with fitness. It offers thousands of healthy recipes and specific workout routines that require no equipment. The app provides weekly health reports that track your weight, calories, and step count in one dashboard. This makes it an excellent all-in-one solution for those looking to lose weight and gain muscle simultaneously.

• Best features: Integrated workout plans and professional wellness advice.

• Pros: Comprehensive tracking for calories, water, and exercise.

• Things to consider: The sheer number of features might feel complex for minimalist users.

5. BodyFast

BodyFast is a German-engineered app that provides highly customizable fasting plans based on your specific goals. It uses a “Coach” system that calculates the optimal schedule for you every single week. The app offers more than 10 different fasting types, including popular options like 16:8 and 5:2. It also includes “Joker Days” which allow you to take a break without losing your progress streak.

• Best features: Weekly personalized fasting plans from the BodyFast Coach.

• Pros: Very flexible for different lifestyles and includes SOS expert help.

• Things to consider: The free version has significantly fewer features than the paid Coach version.

6. Life Fasting Tracker

Life Fasting Tracker is best known for its “Circles” feature which allows you to fast alongside friends and family. It is a very convenient option for those who want to track other health markers like glucose and ketones. The app provides a wealth of research-based articles to help you understand the science behind your fast. It remains one of the most flexible trackers for those who prefer social support and data transparency.

• Best features: Social “Circles” that let you see when your friends are fasting.

• Pros: Tracks advanced metrics like ketones and is very budget-friendly.

• Things to consider: The interface looks slightly dated compared to modern competitors.

7. FastHabit

FastHabit is a straightforward and no-nonsense tool designed for people who want to track their timing quickly. It allows you to manually adjust your start and end times if your schedule changes unexpectedly. The app focuses on consistency by showing you your “streaks” and long-term history at a glance. It is an ideal choice for regular fasters who do not need extra bells and whistles like recipes or workouts.

• Best features: Highly customizable timer with easy manual editing.

• Pros: Very fast to use and perfect for maintaining consistent streaks.

• Things to consider: Lacks the educational content and community features found elsewhere.

8. Sunrise Fasting

Sunrise Fasting uses your local geographical data to align your fasting windows with the actual sunrise and sunset. This approach is rooted in circadian rhythm science and is also popular for religious fasting protocols. The app features a beautiful, minimalist design and a unique hourglass timer that visualizes your progress. It provides a peaceful and focused environment for your daily wellness practice.

• Best features: Circadian rhythm synchronization based on your exact location.

• Pros: Extremely clean aesthetic and provides insightful historical stats.

• Things to consider: Not as effective for people with irregular work shifts or night schedules.

9. Window

Window is a versatile app that allows you to easily monitor both your eating and fasting windows in one view. It features a journal section where you can log your mood, meals, and daily reflections. The app supports a wide variety of protocols, including One Meal a Day and alternate-day fasting. It is great for those who want to see how their food choices correlate with their weight loss over time.

• Best features: Dual tracking for both eating and fasting windows.

• Pros: Excellent for logging mood and reflections alongside physical data.

• Things to consider: Most of the advanced planning features require a pro subscription.

10. Fastient

Fastient is designed for the introspective faster who enjoys journaling and detailed record-keeping. It allows you to tag your fasts with emojis to track how you felt and what symptoms you experienced. The app is cloud-based, so you can access your data from any device or through a web browser. It is a simple yet powerful tool for anyone who wants to gain deeper psychological insights into their fasting journey.

• Best features: Integrated journaling and tagging system for mood and symptoms.

• Pros: Clean user interface and works across all platforms seamlessly.

• Things to consider: Does not offer meal plans or deep educational resources.

Quick Overview

The table below provides a summarized comparison of the top fasting apps to help you identify which one fits your specific needs.

Comparison Table

Quick Picks

If you are looking for an immediate recommendation based on your current health goals:

• Best for Personalized AI Help: Simple

• Best for Scientific Data: Zero

• Best for Group Motivation: Fastic

• Best for All-in-One Fitness: DoFasting

Final Thoughts On Choosing Your Fasting Tracker

Selecting the best intermittent fasting apps is a personal decision that depends on whether you value community, data, or simplicity. We highly recommend starting with one of the free versions to see if the interface matches your daily workflow. Once you establish a consistent habit, you can determine if a premium subscription with AI coaching or advanced metabolic tracking is worth the investment. Using these tools effectively will help you stay disciplined and ensure that your fasting journey is both sustainable and successful.