Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In



The Best Intermittent Fasting Apps

These handy intermittent fasting apps will keep you on track whether you’re fasting for the first time or building a consistent schedule.

Get access to everything we publish when you sign up for Outside+ Join today!.

Intermittent fasting is pretty straightforward, especially when it comes to popular diets. You limit the hours you can eat during the day and fast for the remainder. This simple diet can give your metabolism the kick it needs, help you lose weight and even helps stabilize blood sugar levels. There’s just one tricky aspect to this new way of eating: You need to really commit to your chosen diet and its schedule, eating only during select hours and fasting for longer. That’s why turning to intermittent fasting apps can be particularly helpful.

No matter which kind of intermittent fasting you opt for, an app can make everything easier. Thanks to the increasing popularity of IF diets, there’s now a wealth of handy mobile apps available so you can stay on track right from your smartphone or tablet. From planning meals to tracking fasts, the right app will help you master every little detail of your intermittent fasting plan.

Check out the following intermittent fasting apps, all of which will make scheduling, tracking and monitoring your progress a breeze.


Best For: Busy users who want customized fasting plans and reminders to stay on top of their IF routines.

Zero is one feature-packed intermittent fasting app – and best of all, it offers a wealth of its best features for free. This app is based around simple reminders, which are designed to help you remember when it’s time to eat and when it’s time to kickoff your next fast. The app works for any IF plan. With Zero, you can customize and track your fasting periods or choose from preset fasting windows. You’ll also get access to timers, journals, and other tools like goal-setting, sleep and weight tracking, and a learning library.

A basic account on Zero is free, or you can upgrade to Zero Plus for $69.99 per year. The app is available for both iOS and Android.

Related: 3 Reasons to Try Intermittent Fasting


Best For: Users who love recording and tracking their progress over time.

If it’s consistent and comprehensive data tracking that you’re looking for, Fastient is the IF app to use. This app is all about tracking data, and it offers the perfect place to record everything from meals to exercise to mood to sleep. Fastient puts users’ data into one streamlined and sleek app, presenting trends and progress in easy-to-read graphs. If you want to note more than just data, there’s even a journaling function that lets you customize or detail whatever you’d like.

Fastient offers a free seven-day trial; once your trial ends, you can pay either $5 per year or a one-time fee of $12 for a lifetime membership. Apps are available for the web and for both iOS and Android devices.


Best For: Users who want to work on habit building and better behaviors.

No matter where you are along your intermittent fasting journey, BodyFast can help you stick with your routine. This single app offers 10 to 50 different fasting methods (depending on your subscription), and you can choose any one or switch between different options. As you get into the IF rhythm, BodyFast presents you with challenges that are designed to instill good habits and behaviors, like physical activity, breathing exercises, and even stress management strategies. It turns fasting into a game, encouraging you to challenge yourself against other users, win trophies for motivation, level up your skills with advanced challenges and so much more.

BodyFast offers a free version and a premium version, which you can pay for in three-, six-, or 12-month intervals from $34.99 to $69.99 in price. It’s available for both iOS and Android users.

Femometer Fasting

Best For: Tracking and better understanding what’s happening during fasting periods.

Femometer Fasting is a fantastic app for anyone who loves getting into the nitty gritty of what’s happening on a particular IF diet. At its heart, Femometer Fasting times your fasting periods and sends reminders when you’re due to eat. The app also encourages you to log both your fasting hours and lifestyle habits like sleep schedule, activity level, and food and water intake. Together, all of these data points create a “Body Status,” which provides insight into what’s happening inside your body while you fast. You can see when you’ll start turning fat into fuel, get educational nutritional information, and more.

Femometer Fasting is free with a basic account, but you can upgrade to a premium account for $9.99 a month, $14.99 for three months, or $49.99 annually. Currently, the app is only available on iOS devices.


Best For: Users who need a “personal assistant” to keep their fasting on track.

Simple is an app that’s true to its name – it makes intermittent fasting quite simple. In fact, this app will help you manage your fasting periods and remind you when it’s time to eat, guiding you throughout each day with reminders and some good old smartphone motivation via regular fasting tips. Simple will remind you what to do when, including sending push notifications for water intake so you’re on track with your hydration too. Using an intelligent fast tracker, this app will adjust to your behavior over time so you can stick with your fasting schedule and your new habits.

You can get started with a free Simple account or upgrade to a premium account for $15 per month. The app is available on both iOS and Android devices.

LIFE Fasting Tracker

Best For: Users who prefer surrounding themselves with a community of friends or peers for motivation.

If you’re someone who’s more motivated by your peers than regular reminders, you’ll want to give the LIFE Fasting Tracker app a try. Whether you’re starting IF alone or have friends and family who already follow an IF diet, this app can connect you with others who have similar goals. You can set up the app to help you track any intermittent fasting schedule, and you can connect with friends who also use it. Together, you can challenge, motivate, and remind each other; you can also share your goals and successes. LIFE Fasting Tracker even works with many wearable devices. This app is particularly handy for anyone who’s pairing IF with a keto diet, as the app can help you track ketosis too.

The LIFE Fasting Tracker is free, but you can upgrade to LIFE+ for just $2.99. It’s available on both iOS and Android.


Best For: Users who want to combine IF accountability with the community of a social media app.

At first glance, Vora looks like a pretty stripped-down intermittent fasting app that’s all about tracking your daily fasting. But this app’s simple platform is part tracker, part social media platform. It allows you to time and track your daily fasting, your goals, and your weight loss over time, providing graphs and reports as you progress. Vora also includes a live feed where users can share their successes and activity with other users, allowing others who are tracking with Vora to like your posts and motivate you.

Vora is free to use, though you can upgrade to a premium Vora Pro account for $4.99.

From Clean Eating