Best Intermittent Fasting Apps to Maintain Weight and Improve Your Diet

Intermittent fasting (IF) has become one of the most popular and scientifically supported strategies for weight loss and better health. To make this lifestyle easier, many people rely on intermittent fasting apps that track fasting windows, provide reminders, and offer valuable health insights. The growing market of health and lifestyle app development pushes tech boundaries by driving innovation and advancement. 

There are numerous reasons people prefer an intermittent fasting app, such as it accurately tracks fasting windows, helps them manage their intermittent fasting schedule, and provides personalized dietary suggestions. The intermittent fasting app also motivates users to stay on track and consistent in their weight loss journey. 

Whether you’re practicing the popular 16:8 method (fast for 16 hours, eat during an 8-hour window) or other IF strategies, having the right intermittent fasting app can make your journey much easier. From tracking fasting windows and calorie intake to setting goals and staying motivated, these apps simplify your experience while maximizing results.

What is Intermittent Fasting?

Intermittent fasting is not a diet; it’s an eating pattern. Instead of focusing on what to eat, it focuses on when to eat. The benefits include:

• Weight loss and fat reduction
• Improved insulin sensitivity
• Enhanced mental clarity
• Simplified eating schedules

The significance of using an intermittent fasting tracker app is that it helps users to monitor fasting/eating windows, log weight, track meals and hydration, stay motivated with tips, notifications, and a huge community support. Moreover, the intermittent fasting app contains analytics features that visualize progress over time. These features turn a complicated regimen into a manageable lifestyle.

There is a plethora of the best intermittent fasting apps for Android and iOS, with all the essential features to track your weight loss journey. In this blog, we’ll cover the best intermittent fasting apps of 2025. Plus, if you’re a visionary who wants to create your own fasting tracker, we’ll show you how to turn your idea into a powerful mobile app.

[Bonus Read]: Best Food Delivery Apps in Los Angeles

9 Best Intermittent Fasting Apps To Track Your Weight Loss Progress

1. Zero – Fast Tracker (iOS)

As one of the best intermittent fasting apps, Zero tracks your fasting windows and tells you when you eat with a simple swipe. This way, intermittent fasting can be even easier than just counting calories. Not only is the design of Zero minimalist, but it’s also extremely easy to use and highly navigable. 

2. FastHabit (iOS)

If you’re more interested in changing your diet rather than the time you spend eating every day, FastHabit may be the app for you. With this intermittent fasting app at your fingertips, weight loss will be no problem whatsoever.

FastHabit lets users track not only meals but also snacks. That means if you’re intermittent fasting, you’ll be able to enter everything you eat in order to get an even more accurate look at your diet. Plus, FastHabit has a simple design that makes it easy to navigate for users. 

3. Eat Stop Eat (iOS/Android)

Eat Stop Eat is an intermittent fasting app for people who are interested in getting the most out of their time spent intermittent fasting. The app instructs users on which intermittent fasting schedule will work best for them and then helps track everything they eat throughout the day. In addition to intermittent fasting guidelines, Eat Stop Eat also monitors your circadian rhythm which has a huge impact on how fast you lose weight. With this intermittent fasting app, intermittent fasters can finally enjoy their workouts without worrying too much about losing progress because of their intermittent fasting schedule.

If intermittent fasting hasn’t been working for you because of stress, this app may be the solution. This intermittent fasting app will improve your mental strength by teaching users how stress affects weight loss. Even if you’re just fasting on weekends, Eat Stop Eat will teach you how to turn intermittent fasting into a lifestyle.

Not only does this intermittent fasting app have a gorgeous UI, but it also tracks your weight loss with precision. That means if you’re just focusing on losing weight while intermittent fasting, this is the intermittent fasting app to have.

4. FastHabit (Android)

What does it do? If intermittent fasting has been on your radar for a while now yet you still can’t seem to leap from intermittent fasting skeptic to intermittent fasting fan, this may be the intermittent fasting app for you. In addition to tracking meals and snacks, this intermittent fasting app also gives users daily motivation in more ways than one. Plus, intermittent fasting is easier with some companies. That is why this intermittent fasting app lets users connect with friends who are using the same schedule as they are.

What people love about it: This intermittent fasting app has basically everything intermittent fasters love. FastHabit can help users intermittently fast while tracking their diet and weight loss. It also teaches them how to intermittent fast while still enjoying some of their favorite foods.

5. MyFitnessPal (iOS/Android)

If you want intermittent fasting but are afraid of giving up your favorite foods, this may be the app you are looking for. The intermittent fasting with MyFitnessPal won’t require users to count calories or eliminate carbs. This intermittent fasting app will help you eat healthier.

More than 80 million people already use MyFitnessPal, which is one of the best intermittent fasting apps on the market today. That means intermittent fasting with MyFitnessPal is easy, as intermittent fasting beginners won’t feel overwhelmed at all.

6. Fast Diet Tracker (iOS/Android)

If intermittent fasting is a struggle and you need daily motivation, this intermittent fasting app may be the breakthrough you’re looking for. Fast Diet Tracker also guides users toward intermittent fasting success through tips and tricks they can apply to real life. It is designed to keep fasters motivated with goal-setting tools, quizzes, and progress visualization.

Moreover, it takes intermittent fasting quizzes to stay motivated. The app helps maintain accountability and encourages consistency with positive reinforcement.

7. InterMeal (iOS/Android)

InterMeal is the best intermittent fasting app, which helps users create their personalized dietary recipes and even choose the dietary foods that they love. The reason behind this is that intermittent fasters who do not include their favorite foods are less likely to stick with intermittent fasting for long.

Intermeal is a most-loved intermittent fasting app, as it only lets users track their meals and snacks. Its clean design and meal creation tools help users enjoy intermittent fasting without sacrificing taste. Just like what most intermittent fasters do to lose weight and improve their health! Plus, if you’re already using MyFitnessPal, using both of these apps will be a breeze!

8. 16/8 Lifestyle (iOS/Android)

Created by fitness professionals, 16/8 Lifestyle includes tips and tricks for intermittent fasters of all levels. This intermittent fasting app has everything intermittent fasters love, like meditation tracks, meal plans, recipes, and workout videos!

The best thing about this intermittent fasting app isn’t its intermittent fasting guidelines. It’s the community behind it!​ Intermittent fasters can share their experiences with everyone else and even find buddies for intermittent fasting to motivate each other and share their weight loss journey.

One bonus app is here!

9. LeanGains (iOS/Android)

As the name of this intermittent fasting app suggests, one of its unique points is the fact that it’s target audience is females who are just starting intermittent fasting. With this intermittent fasting app, girls can start their weight loss journey with free intermittent fasting plans. Plus, they don’t have to worry about losing too much weight when using this fasting app because it has built-in safety nets!

It includes adjustable fasting plans and safe health tips. Moreover, LeanGains offers beginner-friendly education, recipes, and guided workouts tailored to hormonal balance and sustainable weight loss.

Bonus Comparison Table

App Name	Platforms	Best For	Key Features	Price
Zero	iOS	Beginners	Custom fasting, Health Sync	Free
FastHabit	iOS/Android	Habit Tracking	Apple Watch Sync, Reminders	Freemium
Eat Stop Eat	iOS/Android	Weight Loss + Sleep Cycle	Stress Reduction, Progress Graphs	Paid
MyFitnessPal	iOS/Android	Diet + Fasting Combo	Calorie Tracker, Macro Breakdown	Freemium
InterMeal	iOS/Android	Meal Planning with Fasting	Recipe Tracking, Meal Log	Free

Want to Build Your Own Intermittent Fasting App?

If you have a brilliant idea for a fasting tracker with unique features or community engagement, it’s time to turn that vision into reality.

At MMC Global, we build powerful, user-centric mobile apps for health and fitness. With over 25 years of experience in the tech industry, our team helps bring custom apps to life, designed for iOS, Android, or both.

Why Build with Us?

• Scalable fasting timer modules
• User profile management
• Community & chat features
• In-app purchase integration
• Calorie and nutrition log systems
• Push notification reminders

Core Features of an Intermittent Fasting App

With the rise in health consciousness and lifestyle tracking, intermittent fasting apps have become increasingly popular among fitness enthusiasts, health coaches, and nutrition-aware users. These apps do more than just track fasting windows, they provide a structured, personalized experience for individuals looking to improve their health, lose weight, and develop sustainable habits.

If you’re planning to invest in intermittent fasting app development, understanding the essential features and associated development costs is crucial. Let’s dive into the core features of an intermittent fasting app and explore the cost breakdown of building one from scratch.

1. User Profile and Personalization

An effective intermittent fasting app begins with a detailed user profile setup. This includes:

• Age, weight, height, and gender
• Fitness goals (weight loss, weight maintenance, metabolic health, etc.)
• Dietary preferences or restrictions
• Activity level

The app uses this information to create a tailored fasting plan and deliver personalized insights. This improves user engagement by offering a customized experience based on individual health goals.

2. Fasting Tracker

The heart of the app lies in its fasting timer, which lets users:

• Select a fasting window (e.g., 16:8, 18:6, 5:2)
• Track progress in real-time
• Receive notifications when fasting starts and ends

Advanced fasting timers also include visual cues like circular progress bars, countdown clocks, and color-coded phases (fasting, eating, resting). Integration with smartwatch devices enhances this feature further.

3. Meal and Water Intake Logging

Users often want to track what they eat and how much water they consume during the eating window. The app can offer:

• Food diary with calorie counting
• Integration with barcode scanners or food databases
• Hydration tracker with reminders

This feature boosts the app’s effectiveness by providing a holistic view of the user’s dietary habits during intermittent fasting.

4. Smart Reminders and Notifications

Timely reminders help users stay consistent. These may include:

• Fasting start/end alerts
  Water drinking reminders
• Meal planning alerts
• Encouragement or motivational quotes

Push notifications are key to user retention and habit-building, which makes this an essential feature.

5. Progress Dashboard and Analytics

The app should provide an intuitive dashboard showing:

• Weight changes over time
• Number of completed fasts
• Longest streaks
• Average fasting duration

Some apps go a step further by visualizing trends with charts and graphs, enabling users to monitor and adjust their fasting strategy effectively.

6. Educational Content and Tips

Many users are new to intermittent fasting. A content hub can educate them via:

• Articles, blogs, and expert tips
• Video guides or tutorials
• FAQs and myth-busting content

This helps build credibility and trust, while also improving user engagement.

7. Community and Social Integration

Adding a community forum or allowing social sharing helps users:

• Share milestones
• Ask questions
• Motivate others on their journey

This fosters a sense of belonging, which is crucial for long-term user retention.

8. AI-Based Recommendations

Integrating AI can take personalization to the next level:

• Recommend optimal fasting plans based on user data
• Adjust plans based on weight fluctuations or health metrics
• Predict plateaus or suggest dietary adjustments

AI enhances the user experience by making it dynamic and responsive to real-world results.

9. Integration with Wearables and Health Apps

Syncing with platforms like:

• Apple Health
• Google Fit
• Fitbit, Garmin, or other wearables

This ensures that the app can automatically collect data such as steps, sleep, heart rate, and calories burned, enhancing the accuracy of fasting impact analysis.

10. Subscription and Monetization System

Your app needs to support various monetization strategies like:

• Free trial + monthly/annual subscription
• In-app purchases (e.g., advanced fasting plans)
• Ads for free-tier users

Payment gateway integration, plan management, and secure billing systems are necessary for a smooth user experience.

How Much Does It Cost to Build an Intermittent Fasting App?

The development cost of an intermittent fasting app depends on multiple factors like features, platform, tech stack, and location of the development team.

Here’s a rough estimate based on three complexity levels:

Feature Set	Estimated Development Time	Estimated Cost (USD)
Basic App (Fasting tracker, profile, reminders)	2–3 months	$20,000 – $35,000
Mid-Level App (Meal tracking, analytics, wearable integration)	3–5 months	$35,000 – $60,000
Advanced App (AI, social features, multilingual, content hub)	5–8 months	$60,000 – $100,000+

 

Development Breakdown:

• UI/UX Design: $5,000 – $10,000
• Frontend & Backend Development: $15,000 – $60,000
• QA & Testing: $3,000 – $8,000
• Project Management: $2,000 – $6,000
• Post-launch Support: Varies (monthly retainer or hourly)

Note: Costs may vary significantly based on whether you hire a freelance developer, an in-house team, or an app development company.

Conclusion 

Whether you’re just getting started with intermittent fasting or you’re ready to level up your progress, these apps provide the tools you need to stay on track. From fasting reminders to nutritional guidance and workout suggestions, they turn fasting into a sustainable habit.

Building a feature-rich intermittent fasting app can be a valuable addition to the growing health tech space. By integrating advanced features like AI personalization, real-time tracking, and seamless user experience, your app can stand out in a competitive market.

If you’re ready to invest in mobile app development for intermittent fasting, make sure you focus on user-centric design, scalable architecture, and data-driven features to keep users motivated and consistent in their health journey.

And if you’re an entrepreneur or wellness coach ready to create your own intermittent fasting app, MMC Global is your go-to development partner.