Best Intermittent Fasting Apps | Expert (and stomach) Approved!

Zero is the perfect guide for anyone ditching calorie counting for metabolic health. I was hesitant about fasting, but the app's one-tap timer made starting my first 16:8 fast incredibly simple. What really impressed me was the Fat-Burning Mode.

Seeing the app show me, in real-time, when my body likely shifted into ketosis was a huge motivator. It wasn't just a passive timer; it felt like a personalized guide. I also loved the expert content, which explained why I was feeling more energetic.

The app is free to download and use; however, for more advanced features like fat burning mode, a premium content library, custom fasting plans, and others, you can buy a Plus subscription. The Zero Plus subscription starts at $9.99.

The daily Streaks and Badges became a fun obsession that genuinely helped me build a consistent habit and see transformative results. A quick note: while it's an iOS superstar, I noticed the Android ratings are lower. Most complaints seem to be about a clunky UI, but the core tracking features I love are all there!

Fastic is a personalized health experience for anyone who feels that other fasting apps are just glorified timers. I was immediately drawn to its new Protein Fasting mode, which isn't just about when you eat, but what you eat.

The app provided high-protein recipes that helped me feel full and energized, a game-changer compared to just watching a clock. What really impressed me was the Fastic Food Scanner. Curious about my lunch, I snapped a quick photo, and the app instantly analyzed its nutritional content. It was incredibly insightful.

This, combined with my personalized Fastic Score, which tracked my fasting, hydration, sleep, and steps, made me feel like I had a complete picture of my health. It wasn't just about avoiding the yo-yo effect; it felt like building a genuinely healthier, sustainable lifestyle from the ground up.

Fastic operates on a freemium model. The free version provides the core tools needed for intermittent fasting. With Factic Plus available for $14.99 for a month, you get a recipe book, interaction with Fasty (AI chatbot), advanced stats, and more.

BodyFast, with over 50 million installs, is like having a personal fasting coach right in your pocket. I found its approach incredibly adaptive, which is perfect for someone like me whose schedule changes.

Instead of just sticking to one plan, the ‘Coach’ (a premium feature, available at $13.49 for a month) gave me a new, simple fasting schedule every week, which kept things from getting boring. What really set it apart for me were the 100+ recipes tailored for fasting.

It's not just about not eating; the app helps you eat well, too. I also loved the ‘Fasting Stages’ feature, which shows you what's happening in your body as the hours tick by. It’s incredibly motivating to see you've entered the fat-burning or detox phase.

Window acts as your personal guide, combining a science-based approach with expert guidance. For me, the free version was a great start, with its simple timer, weight journal, and helpful blog. But upgrading to Premium is what made the difference.

I received a personalized fasting program and, most impressively, an individual meal plan. This solved my biggest problem: what to eat when my window opened. The app didn't just track my food; it gave me nutritionist-approved ideas for breakfast, lunch, and dinner.

I also loved the ‘Healthy Challenges’ feature. With this feature, I was able to manage and reduce my sugar intake. It also helped me build a new habit (a healthier one). You can also opt for Window’s Premiu,m which unlocks nutrition and mood tracker, individual meal plans, healthy challenges, and much more.

All these features and much more are available with the premium plans starting at $4.99 for a week.  This is one of the best apps for intermittent fasting, offering a complete system that connects your fasts, nutrition, and mood.

Sunrise Fasting is a beautifully simple and effective guide for your fasting journey. As someone who has tried other apps, I appreciated its clean, to-the-point interface. I set up a custom 18:6 fast, and the live hourglass timer on my home screen widget was surprisingly motivating.

While Sunrise is a beautifully simple tracker for any IF plan, its standout feature is its ability to track location-based fasts. For anyone observing a religious or cultural fast (like Ramadan), it can automatically set your windows based on your local sunrise and sunset.

It’s one of the best free intermittent fasting apps for iPhone, a perfect, uncomplicated companion for both beginners and experienced fasters. You can use the app for free or opt for a subscription plan to access full features.

With a premium plan, you can unlock fasting presets, an ad-free experience, and much more. If you are someone who just wants a reliable tool to track their fasts, earn badges, and stay motivated, Sunrise is for you!

The DoFasting Intermittent Fasting app starts with a comprehensive quiz to understand your goals, which I found made the process feel very personalized. The app then provides a customized fasting plan, but it doesn't stop there. What truly sets it apart is the integration of workout routines and a 5,000+ recipe library.

I loved that I could do an equipment-free workout and then find a keto-friendly meal to break my fast, all within the same app. It's a structured, all-in-one system that provides real-time progress updates and extensive guidance to help you build long-lasting, healthy habits.

The DoFasting Premium subscription (starting at $32.99/month) provides a comprehensive weight-loss toolkit that includes personalized fasting plans, a library of home workout videos, and over 5,000 healthy recipes. It also unlocks advanced calorie and macro tracking features to help you manage nutrition alongside your fasting schedule.

Bonus Read: Top Weight Loss Apps

Fastin is a powerful weight-loss tool that guides you on your intermittent fasting journey. It’s built on the idea that you don't need to exercise for 3 hours a day, just control when you eat. What I loved most was the Body Status feature; seeing a visual of what was happening to my body as I fasted was incredibly motivating.

It’s also a true all-in-one app. I was able to track my fasting window, log my meals in the Food Tracker, monitor my hydration with the Water Tracker, and even log my sleep and daily activity.

This gave me a complete picture of my progress and helped me understand my body and health better. The Fastin Prime subscription unlocks personalized fasting plans, a comprehensive nutrition guide with macro tracking, and a library of healthy recipes.

This is the best app for intermittent fasting, which also provides 1-on-1 professional coaching support and detailed body status insights to help you understand your metabolic changes.

GoFasting is a professional and free fasting tracker designed to make weight loss easy and accessible. I found it to be one of the most straightforward apps available. I used it for a few days and loved the simplicity. All I had to do was pick a plan (I started with 16:8) and tap to start the timer.

The app sent a notification when my eating window opened, taking all the guesswork out of it. It’s not just a timer; it also has a great section with professional articles that helped me understand why fasting works.

The GoFasting VIP (or Pro) subscription unlocks all advanced fasting plans (beyond the basic 16:8), removes all in-app advertisements, and provides unlimited access to professional health articles.

The premium version is available for $12.99 per month, and it also enables expanded statistics and charts for tracking weight and body changes over longer periods. GoFasting is a great intermittent fasting app if you are someone who wants to lose weight without a complicated diet.

Also Read: Free Calorie Tracking Apps

FastHabit is the perfect app if you find other fasting trackers overly complicated. I was looking for something simple, and FastHabit delivered. Setting my 16-hour fast was effortless, and I loved how easy it was to adjust the timer if my eating window shifted slightly – something other apps often make difficult.

The Apple Watch integration is a standout feature; I could start, stop, and check my progress right from my wrist, which was incredibly convenient during busy days.

What kept me going was the 10-day snapshot showing my fasting 'streak.' Seeing those consecutive days built up was surprisingly motivating. The FastHabit Pro upgrade is typically a one-time purchase (priced at $2.99) rather than a recurring subscription.

It unlocks unlimited stat tracking (the free version often limits history), enhanced reminders (including start/stop alerts and early warnings), and the ability to export your data for personal analysis. All-in-all, the FastHabit Intermittent Fasting app is a clean, efficient app that focuses on the core task of tracking your fasts consistently.

Fasting Tracker guides you through intermittent fasting, aiming for sustainable weight loss without the yo-yo effect. Starting a fast is simple with the one-click smart timer, and the app provides reminders to keep you on track.

What I found really useful were the Body Status updates – seeing exactly when my body switched to fat-burning mode (ketosis) was highly motivating. The Premium (Pro) subscription for this app removes all ads and unlocks all fasting plans (beyond the basic ones).

This offers a fully personalized experience. It also provides advanced statistics to track weight and body status trends, along with a library of healthy, easy-to-make recipes (including Keto options).

The app offers various plans, from beginner (12:12) to advanced (23:1), and even provides easy recipes and expert articles to support your journey. It focuses on the health benefits like improved metabolism and detoxification, making weight loss feel natural.

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