Intermittent fasting is one of the most effective weight loss regimens that does not cost money. To make your fasting experience more seamless, check out these 20 free intermittent fasting apps, which offer different features to suit your goals and preferences.
What Are Intermittent Fasting Apps?
Intermittent fasting apps serve as digital tools designed to assist individuals in implementing and maintaining intermittent fasting regimens.
Intermittent fasting is an eating pattern that alternates between periods of eating and fasting. Various protocols exist, such as the 16/8 method, the 5:2 diet, or alternate-day fasting.
Intermittent fasting apps help with the following:
- Tracking Fasting Periods: Timers or clocks to help users track their fasting periods accurately. Users can set their fasting windows according to their chosen fasting protocol, and the app will countdown the time until their next eating window begins.
- Meal Logging and Planning: Users can log their meals, record their calorie intake, and track their macronutrient consumption to ensure they meet their nutritional needs within their eating windows.
- Progress Monitoring: Intermittent fasting apps allow users to track their fasting streaks, monitor weight loss or gain, and assess other health metrics such as body measurements or energy levels.
- Community Support: These apps may include social networking features such as forums, chat rooms, or virtual support groups where users can connect with others, share experiences, ask questions, and encourage one another.
- Educational Resources: Many intermittent fasting apps include educational resources such as articles, videos, or podcasts to help users better understand the science behind intermittent fasting, its potential health benefits, and tips for successful implementation.
- Personalization and Customization: Users can adjust fasting schedules, set fasting goals, customize meal plans, and receive tailored recommendations based on their unique needs and preferences, promoting adherence.
List of Free Intermittent Fasting Apps Without Subscription
| App Name | Downloads | Build Year | Android | IOS |
| Zero | 15,000,000+ | 2016 | Yes | Yes |
| Fastic | 10,000,000+ | 2019 | Yes | Yes |
| BodyOK | 200,000+ | 2019 | No | Yes |
| BodyFast | 30,000,000+ | 2017 | Yes | Yes |
| Window | 1,000,000+ | 2019 | Yes | Yes |
| Fasting | 10,000,000+ | 2019 | Yes | Yes |
| Sunrise | 1,000,000+ | 2018 | No | Yes |
| SoonFasting | 10,000,000+ | 2017 | No | Yes |
| DoFasting | 500,000+ | 2019 | Yes | Yes |
| FastHabit | 100,000+ | 2019 | Yes | Yes |
| LIFE Fasting | 1,000,000 | 2018 | Yes | Yes |
| Ate Food Diary | 100,000+ | 2021 | Yes | Yes |
| Simple | 5,000,000+ | 2019 | Yes | Yes |
| iFasting | 100,000+ | 2019 | Yes | No |
| Clear | 1,000,000+ | 2019 | Yes | Yes |
| Rhythm | 100,000+ | 2019 | No | Yes |
| Fasten | 10,000+ | 2020 | Yes | No |
| Fastient | 50,000+ | 2019 | Yes | Yes |
| Fasting Secret | 100,000+ | 2013 | No | Yes |
| Lasta | 50,000+ | 2020 | Yes | Yes |
What Are the Best Free Intermittent Fasting Apps in 2024?
1. Zero
Zero is a frontrunner in the intermittent fasting app market. It boasts a user-friendly interface coupled with robust features, including the following:
- Customizable fasting plans
- Fasting timers
- Setting your intentions
- Meal logs
- Monitor progress
- Educational content
- Community support
Zero is entirely free to use but is also available for premium features.
2. Fastic
Fastic is another leading intermittent fasting app with good user reviews due to its convenience and comprehensiveness. It boasts its AI food scanning feature, which allows users to glance at their food’s nutritional information, although it may not provide the most accurate information.
Here are the app’s other features:
- Fasting timer
- Healthy and easy recipes
- Community support
- AI chat support
- Weekly courses and challenges
- Fastic Score: Daily wellness recap
Downloading Fastic is free, but there are paid versions to access the premium features.
3. BodyOK
BodyOK is another well-loved intermittent fasting app released in 2019. This app boasts simplicity and effectiveness, as evident in user reviews. This app is straightforward and has the following features:
- Intermittent fasting tracker
- Weight monitoring and adding notes
- Water tracker
- Notifications about start/end of fasting and food window
- Detailed history and analytics
- Weight sync with Apple Health
4. BodyFast
BodyFast is one of the most popular intermittent fasting apps, with over 30,000,000 downloads and over 500,000 user reviews. This app aims to provide simplicity to users, making it perfect for beginners.
You can download the app free of charge, but they offer an in-app coach subscription. Some of the free features include:
- More than 10 fasting plans
- Fasting timer, including reminders
- Track your weight and body measurements
- Fasting stages: See what’s happening in your body while fasting
- Water tracker
- Knowledge pool for intermittent fasting
Moreover, the paid subscription offers daily coaching and recipe recommendations.
5. Window
Window offers a convenient and simple way to enjoy intermittent fasting. It has both free and premium features, available as an in-app purchase. The free features include the following:
- Fasting timer and reminder
- Weight monitor
- Water intake tracker
- Educational blogs
- Apple Health/watch sync
Meanwhile, the premium version has these additional features:
- Access to all intermittent fasting plans
- Recommended meal plans
- Personal statistics
- Health challenges
- Nutrition and mood tracker
6. Fasting
Fasting is another app with millions of downloads and a 4.9 on both Google Play and Apple App Store. Like other apps, you can download it for free and use its basic features, which users say are “more than enough,” or you can purchase a subscription to explore all its offers.
Its features include the following:
- Various intermittent fasting plans
- One tap to start/end
- Customize fasting and diet plan
- Statistics: track the completion of your goals, weight trends, feelings
- Educational materials
- Sync data with smartwatches
7. Sunrise
Sunrise is another app that offers simplicity, making it suitable for beginners who are fasting intermittently. It boasts an encouraging way of tracking your fasting hours by giving reminders before finishing your fast and badges after completion.
Here are some of the app’s features:
- Customizable fasting plan
- Tracking: track fasting time, weight, mood, and badges/accomplishments
- Free educational materials
- Supports smartwatch pairing
Due to its simplicity, users state it is sustainable. Some have been using Sunrise for over three years now.
8. SoonFasting
SoonFasting is a user-friendly app that aims to help you achieve your weight and body goals and improve mental health, promising improvements within 4 weeks. The app is aesthetically pleasing and boasts numerous features, including the following:
- Customizable plans according to your goals, weight, and lifestyle
- Timely reminders
- Track progress: fasting hours, water intake, steps, and weight
- Educational materials
- Fasting recipes
- Community support
- One-on-one consultation
- AI food scanner and calorie counter
- Workout recommendations
9. DoFasting
DoFasting aims to guide users in planning their health and weight loss journey through their straightforward app. This intermittent fasting app is free but has premium plans you can purchase to enjoy all of the features, including the following:
- Real-time trackers for calorie, fasting, water, and steps
- Weekly reminders, weight loss insights
- Over 5,000 vegan, vegetarian, meat-based, paleo, and keto-friendly recipes.
- Workout routines, a quiz, and extensive guidance on intermittent fasting
10. FastHabit
FastHabit’s straightforward interface ensures easy and flexible fasting tracking. The app allows users to see their stats and streaks, offering an encouraging way of tracking fasting.
Here are some of the FastHabit features:
- Flexible fasting plans
- Motivational: see percent complete, time completed, time remaining, and target end
- Sync data with your Apple Watch
- Timely reminders and notifications
- Fasting calendar and weekly views with daily details
Like other apps on this list, FastHabit is free but offers a pro version at a very affordable price.
11. LIFE Fasting Tracker
LIFE fasting app is currently ranked #187 in the App Store’s health and fitness apps, with a rating of 4.8/5.0. Downloading the app is free, but the LIFE+ version is available for a low price, making it one of the most affordable premium versions in this list.
Here are some of the app’s free features:
- Highly customizable
- Tracking: log your weight, measurements, ketones, blood glucose, and mood to track your progress over time
- Social/Community support
- Learning Library
- Assessment and calculator for macros and basal metabolic rate
12. Ate Food Diary
Ate Food Diary is an app that encourages users to integrate intuitive and mindful eating to achieve more sustained health and weight goals. The app guides users to make healthier food choices without needing constant tracking.
You take photos of your meals and it automatically gets time-stamped. Here are other features of the app:
- Photo-based and visual
- Tracking: meals, exercise, and sleep
- Fully customizable
- Community support available
13. Simple
Simple is one of the more popular intermittent fasting apps, with a 4.7 rating from 202,000 user reviews, ranking 89 in the App Store’s Health and Fitness. As the name implies, the app offers a simple approach to intermittent fasting but offers so much more, including the following:
- A human-like AI health coach
- Science-backed tools and techniques
- Simple, sustainable steps to lose weight
- Tracking: meals, drinks, movement
- Instant nutritional feedback on meals
- Food suggestions for dining out
- Highly flexible
14. iFasting
The app offers a simple and easy-to-use interface that allows you to monitor your fasting progress by day, week, and month. This app is straightforward, but the only downside is that it’s unavailable for IOS. Here are its features:
- Customizable fasting plans
- Easy tracking
- Provides informative fasting results
- Educational materials
15. Clear
Clear is an app that encourages users to focus on when to eat rather than what to eat and guides them to an enjoyable and sustainable weight loss journey. It boasts a lot of features, with some needing a premium subscription:
- User-friendly and customizable fasting timer with reminders
- Fasting phases show you when fat-burning starts
- Tracking: water intake, weight, and food diary
- Educational materials
- Soothing nature sounds
- Simple recipes
- Smart Watch synchronization
16. Rhythm
Rhythm is a straightforward app perfect for beginners. Unlike other intermittent fasting apps, it does not contain many features, allowing users to focus only on tracking their fasting time and giving reminders when to start and stop fasting.
17. Fasten
Fasten is another beginner-friendly app that is very easy to use. Released in 2020, its interface resembles that of gaming apps, encouraging users to check their progress through the app proactively. Features include:
- Customizable fasting
- Fasting logs: frequency and length of fasting
- Tracking: water/coffee/tea intake
- Keto mode: check if you’re entering ketosis, heavy ketosis, and autophagy
- Share accomplishments on social media
18. Fastient
Fastient is an easy-to-use and minimalist app that displays your progress before, during, and after a fast. Although downloaded for free, Fastient is one of the most affordable apps in this list, with a lifetime premium subscription for only $11.99. Here are the features of this app:
- Highly customizable fasting plan
- Tracking: daily achievements and journal symptoms, mood, weight
- Add and edit previous fasts or cancel the current fast
- Journal: thoughts, feelings, and cravings in a simple note
19. Fasting Secret
Fasting Secret’s tracking goes beyond fasting time, weight, water, and mood unlike other apps. Its intricate interface is suitable for those looking for an all-in-one health app. The free version has the following features:
- Customizable fasting plans
- Tracking: Weight, height, body fat, heart rate, blood pressure, blood sugar, ketones, waist, hip
- Calendar view of fasts
- Daily notes for motivation
20. Lasta
Lasta aims to provide users with lasting results from their diet and fasting habits, providing an all-in-one solution for tracking progress and staying motivated. Features include the following:
- Personalized fitness program: workout suggestions, from yoga, pilates, and home exercises
- Improves mindset: cognitive-behavioral therapy and mindful eating approaches
- Food logging and calorie tracking
- Tracking: activity, mood, water intake
What Is the Best Intermittent Fasting App for Weight Loss?
Choosing the best intermittent fasting app for weight loss depends on individual preferences, goals, and the features offered by each app. This means there is no one-size-fits-all recommendation.
However, based on our gathered data, Zero, Fastic, BodyFast, Fasting, SoonFasting, Ate Food Diary, Simple, Clear, and Fasting Secret are some apps with great free features and good user reviews.
Nevertheless, consider your goals and preferences, try several apps, and stick to the one that works best for you.
Why Should You Use a Fasting App?
Fasting apps allow you to be more mindful and committed to intermittent fasting. Some apps offer weight, activity, water, and coffee intake trackers, and even sleep or mood monitors, allowing you to better monitor your overall health.
Intermittent fasting apps also allow stress-free tracking of fasting time, suitable for those who lack time to keep track of when to start and stop eating.
Lastly, these apps motivate users with community support, free exercise guides, and educational materials.
The Bottom Line
Intermittent fasting apps track your health and promote commitment and motivation. However, there is not one best fasting app, as it all depends on individual goals and preferences.
Frequently Asked Questions (FAQ)
Is there a completely free intermittent fasting app?
Every intermittent fasting app in this list is free to download and offers free features, but they also have more features available for premium subscriptions.
Is the zero fasting app free?
Zero is a free app so that you can download it for free. It has basic features you can access for free and premium features that require a paid subscription.
How can I intermittent fast for weight loss for free?
Intermittent fasting does not technically require an app for it to be effective. Apps help motivate and track progress, but the commitment to your chosen intermittent fasting plan will result in weight loss.
Which intermittent fasting is best for weight loss?
The most common and safest way is the 16/8 method, where you can eat preferably two meals in the 8-hour eating window and fast the rest of the 16 hours.
Mag. Stephan Lederer, MSc. is an author and blogger from Austria who writes in-depth content about health and nutrition. His book series on Interval Fasting landed #1 on the bestseller list in the German Amazon marketplace in 15 categories.
Stephan is a true man of science, having earned multiple diplomas and master's degrees in various fields. He has made it his mission to bridge the gap between conventional wisdom and scientific knowledge. He precisely reviews the content and sources of this blog for currency and accuracy.
Click on the links above to visit his author and about me pages.