Find the Best Free Intermittent Fasting App in 2025 to Help You Lose Weight

If you've been thinking about trying intermittent fasting, you're not alone—it's one of the most popular ways to improve your health, lose weight, and feel more energized. But let's be honest: sticking to a fasting schedule, whether it's the 16:8 method or the 5:2 diet, isn't always easy. That's where an intermittent fasting app can step in to help.

These apps make fasting more manageable by tracking your schedule, sending you reminders, and offering helpful insights along the way. In this post, we'll highlight some of the best free intermittent fasting apps for 2025 and share tips to make your fasting journey smooth and successful.

Benefits of Using an Intermittent Fasting App

If you've ever tried intermittent fasting, you know it can be tricky to keep track of your fasting and eating windows. That's where an intermittent fasting app can really make a difference. These apps are like your personal fasting coach, helping you stay on top of your goals and making the process easier and more effective. 

Here are some of the key benefits you'll enjoy when using a free app for intermittent fasting:

• Stay on Schedule with Ease: An app takes the guesswork out of fasting by tracking your schedule for you. It sends reminders when it's time to start or end your fast, so you can focus on your day without worrying about the clock.
• Track Your Progress: Seeing your progress over time can be incredibly motivating. Many apps let you log your fasting hours, weight, and other health metrics, giving you a clear picture of how far you've come.
• Personalized Fasting Plans: Not all fasting methods are the same, and what works for one person might not work for another. The right app helps you find a plan that fits your lifestyle, whether it's 16:8, 5:2, or something else entirely.
• Helpful Insights and Tips: Most apps come with extra resources like tips, articles, or even meal suggestions to help you get the most out of your fasting journey. It's like having a pocket guide to intermittent fasting!
• Boost Your Motivation: Fasting isn't always easy, but an app can keep you motivated. Seeing streaks, progress charts, and getting encouraging notifications can make a big difference on tough days.

Best Free Intermittent Fasting Apps of 2025

As you can see, an intermittent fasting app can really make it more manageable, help you stay on track, and achieve your health goals. So, what is the best free intermittent fasting app? Here are 7 top-rated options for 2025:

Simple

Beginner-friendly, the Simple tracks your fasting hours, food intake, hydration, and even offers access to recipes, workout plans, and educational articles. Its AI coach provides personalized advice, while the innovative Avo Vision scans restaurant menus for instant nutrition insights. Then logged meals receive a Nutrition Score and actionable tips to improve your diet over time. 

Also, compatible with Fitbit, it offers plans for weight loss, mindful eating, and stress reduction. It is not empty talk! Debi, a user who lost 76lbs, shared, "The Simple app made it really easy for me to keep track of my water and tea intake, as well as my food and the hours I've been fasting... I finally feel like I'm in control of my health!"

• Suitable for: iOS and Android
• Price: Free for basic content and $14.99/month for premium version (longer subscription period with lower cost)
• Educational Content: Fasting basics, eating and weight loss psychology, and more

Zero

Zero isn't just about shedding pounds—it's about boosting your overall health. Whether you're just starting or a seasoned faster, the app provides custom fasting plans, even in its free version. It also offers detailed progress tracking and analytics through Zero Plus, helping you stay motivated. You can sync your favorite health apps for real-time insights into your health journey, balancing eating, moving, sleeping, and restoring.

Carlos, a longtime user, shared, "Zero has transformed my energy levels. In my late 30s, I feel better than I did in my 20s—even better than when I played soccer in high school!" This is exactly what Zero aims to do: help you feel your best, no matter your age.

• Suitable for: iOS and Android
• Price: Free to access basic content like meal journal and fasting timer; $69.99 for an annual subscription to the Plus version
• Educational Content: Daily blogs about health habits and case studies about weight loss

Vora

"Vora as in voraciously devouring a big meal after fasting." Literally, it can make your fasting easy and crazy. With multiple methods available, including a full fast, the 5:2 method, Dr Jason Fung Fast, Daniel Fast, or something else entirely, this app tracks it all for you. You can create, edit, or delete your fasts and notes with ease and view your last seven fasts on a sleek chart to check if you're hitting your targets.

Besides, you can know your peers' accomplishments. As one user put it, "Vora has made it so easy to stay consistent. I love the social feed where I can connect with others, share my progress, and get support."

• Suitable for: iOS
• Price: Free for basic content; $4.99 for full access to Vora Pro
• Educational Content: No, only social feed

FastHabit

FastHabit offers an easy-to-use interface with customizable reminders and clear graphics to help you stay on track with your fasting schedule. It integrates seamlessly with Apple Watch and Health Kit for smooth tracking. Its free version covers basics like daily stats and reminders, while the Pro version unlocks features like extended fasting hours, weight tracking, and data export.

However, FastHabit lacks food logs, recipes, and community support, which might leave some users wanting more. As one user put it, "It's great for simplicity, but I wish it had more features to help with my full health journey." Still, for those who need a streamlined fasting app, it's a solid choice.

• Suitable for: iOS and Android
• Price: Free for basic content; $2.99 for full access to Pro version (one-and-done payment)
• Educational Content: No

DoFasting

With DoFasting, you can access personalized fasting plans tailored to your lifestyle and preferences. The app includes a fasting timer to monitor your eating and fasting windows, ensuring you adhere to your chosen schedule. 

Additionally, DoFasting provides a calorie tracker to help you manage your daily intake, a water tracker to ensure proper hydration, and a step counter to monitor your physical activity. To keep you motivated, the app offers daily articles and tips written by professionals, covering topics related to intermittent fasting, healthy eating, and emotional well-being. 

• Suitable for: iOS and Android
• Price: Free for basic content; $32.99/month for premium version (longer subscription period with lower cost)
• Educational Content: Daily articles and tips about intermittent fasting, healthy eating, and emotional well-being.

BodyFast

BodyFast is a user-friendly app that simplifies intermittent fasting for both beginners and seasoned users. It offers over 10 different fasting plans, including popular methods like 16-8 and 5-2, allowing you to choose the one that best fits your lifestyle. The app features a fasting timer with reminders to help you stay on schedule, as well as trackers for weight, body measurements, and water intake to monitor your progress. 

For those seeking personalized guidance, BodyFast offers a Coach subscription that provides individualized fasting plans, daily coaching with tips and motivation, access to over 100 healthy recipes, and weekly health and fitness challenges.

• Suitable for: iOS and Android
• Price: Free for basic content; $13.49/month for Coach subscription (longer subscription period with lower cost)
• Educational Content: Blogs about intermittent fasting, healthy eating, and emotional well-being.

Window

Window stands out due to its flexibility and user-friendly design. In this all-in-one app, you can manually adjust your fasting windows, track your water intake, and monitor weight loss. Fasting plans include options like "Easy Start," "Lean Gains," "The Warrior," and OMAD, catering to various fasting preferences. The app also allows you to log photos and notes, making it easy to track your progress over time.

While the app is free to download, you must upgrade for full access if you want to unlock a personal fasting program, nutrition and mood tracker, and more premium features. 

• Suitable for: iOS and Android
• Price: Free to download; $39.99/year for full access
• Educational Content: No

How to Choose the Right Free Intermittent Fasting App for You?

Choosing the best intermittent fasting app free can feel overwhelming with so many options available. To find the one that suits you the most, here are some factors you should consider:

• Define Your Goals: Ask yourself what you want to achieve. Are you focusing on weight loss, better energy levels, or improved health? Some apps emphasize tracking weight and calories, while others provide insights on overall wellness. Knowing your goals will help narrow your choices.
• Check the Features: Look for features that matter most to you. Basic options typically include fasting timers, calorie counters, and progress trackers. More advanced features might offer meal suggestions, educational resources, or even customized workout plans to enhance your experience.
• Ease of Use: The app should be simple and intuitive. If it feels confusing or clunky, you're less likely to stick with it. Check reviews or try a few apps to see which one feels right.
• Customization Options: Your lifestyle is unique, so your app should let you personalize your fasting schedule. Whether you follow 16:8, 5:2, or another method, choose an app that adapts to your preferences.
• Integration with Other Tools: If you're already using a fitness tracker or health app, consider one that syncs with it. This makes it easier to monitor all your data in one place, like steps, sleep, and water intake.
• Community and Support: Some apps have built-in communities where you can connect with other users for advice and encouragement. If you thrive on social support, this feature could be a big plus.

Tips for Effective Intermittent Fasting Using an App

Using a free intermittent fasting app can make your fasting journey much smoother and more rewarding. To get the most out of your app and stay on track, follow these simple tips:

• Set Realistic Goals: It's crucial to set achievable goals for what you want to achieve with intermittent fasting, whether it's weight loss or improved energy. For example, if you currently weigh 200 pounds, losing 1-2 pounds per week is realistic, meaning you could potentially shed 4-8 pounds per month. Slow and steady progress helps you stay motivated and maintain long-term results.
• Choose the Right Method: Most apps let you pick from popular fasting methods like 16:8, 5:2, or OMAD (One Meal a Day). Pick a plan that fits your lifestyle and schedule, and don't hesitate to switch if something doesn't feel right.
• Use App Features Consistently: Take advantage of your app's tools, like timers, reminders, and progress trackers. These features are there to help you stay organized and consistent, so make them a part of your routine.
• Combine Fasting with Healthy Eating: Fasting alone isn't enough for optimal health. You can pair it with balanced, nutrient-rich meals that support your energy levels. It includes whole foods like vegetables, lean proteins, and healthy fats to nourish your body, boosting both weight loss and overall wellness.
• Engage with the Community: If your app has a community feature, join it! Connecting with others can provide tips, encouragement, and support when you need it most.
• Listen to Your Body: Your app is a helpful guide, but always listen to your body. If you feel overly fatigued or unwell, adjust your fasting plan or take a break. Your health comes first.

Build Your Own Intermittent Fasting App with Tencent RTC

If you're a developer looking to create an engaging and user-friendly intermittent fasting app, integrating communication features can take your app to the next level. Whether you want to build a community for fasting enthusiasts or provide personalized coaching, TRTC(Tencent Real-Time Communication) has you covered. 

Here's how Tencent RTC can help you create a standout intermittent fasting app:

• Quick Integration with Simple Code: Tencent RTC provides multi-platform chat APIs, server-side APIs, webhooks, and UIKit components that make integration seamless. Whether you're building from scratch or enhancing an existing app, you can get started with just a few lines of code.
• Offline Notifications: The offline message push notification feature is essential for ensuring your users stay on track with their fasting schedule. With timely reminders, even when they're not actively using the app, your users will never miss the start or end of their fasting window.
• Group and Conversation Management: Managing communities is a breeze with Tencent RTC. You can create super large groups accommodating up to 1 million members, perfect for fostering vibrant fasting communities.
• Rich Communication Features: Your users can exchange text, images, audio, and video messages, keeping the fasting experience interactive and personal.
• Personalized AI Interaction: Integrating Tencent RTC's conversational AI SDK allows you to add innovative features like virtual coaches or real-time audio/video feedback. These capabilities can mimic human interaction, offering users personalized fasting guidance and encouragement.

Conclusion

Starting and sticking to intermittent fasting doesn't have to be overwhelming. With a free intermittent fasting app, you've got the perfect companion to help you stay on track and reach your health goals. From the advanced AI coach offered by Simple to streamlined options like Vora, each of the apps we've introduced can give you the tools and motivation you need every step of the way.

And for developers looking to create their own solution, Tencent RTC can help you transform a basic fasting app into an interactive, community-driven platform. Give your users not just a tool for fasting, but a dynamic space to learn, connect, and stay motivated.

FAQs

Is there a totally free intermittent fasting app?

Most intermittent fasting apps, such as Zero and Simple, offer basic features like fasting timers and progress tracking at no cost, though premium versions with extra features are often available. Alternatively, there are several completely free intermittent fasting apps available, like Sunrise Fasting, which does not require any in-app purchases or subscriptions.

How to do intermittent fasting to lose weight free?

You can leverage free intermittent fasting apps to plan fasting schedules, track eating habits, and monitor progress. It is a good way to pair fasting with balanced nutrition for optimal results.

How should a beginner start intermittent fasting?

Start by choosing a simple fasting method, like the 16/8 method, where you fast for 16 hours and eat within an 8-hour window. Begin gradually by delaying your breakfast or eating dinner earlier to create your fasting period. Stay hydrated, focus on nutritious meals during your eating window, and listen to your body.