The only diet that works, is not a diet

Intermittent fasting is a lifestyle that will put fat off your body. Most diets fail because are full of restrictions. With intermittent fasting, you can eat any food you like and loose weight. Our app will help you follow this simple lifestyle.

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Track fasting time

Set your fasting goal and use our time tracker to track your fasting times. The purpose it to motivate you to push the fasting to the limits and transforming your body to a fat burning machine.


Set notifications, change theme color, use widget, change time format and much more. You are given a huge number of custom options to set.

More than fasting

With Zero Calories, you can track almost every critical body measurement like weight, ketones, glucouse, water intake and body measures. Store all your data in one place.


Push your motivation to the roof

Your history will show you how great you performed. After visualising unbelievable results, will you ever go back?

"I have just started this and I really love it! I hope to continue too drop weight and feel great! 5 lbs. in 4 days!"

  • Valerie Henao

Statistical data in one place. Get better day by day. Bring those abs to the sun!

"Simplest and works."

  • Rohit Srivastav

Fasting is easy when your friends do it with you.

Fast together within a group or create a custom group to fast with your friends.

Customize your app. Set a color that you like the most. Let fasting be fun and full of colors.


Store and share your data to other devices

Store you app data to the cloud. You can check a more advance data analisys on your PC


Sync data to web cloud

Sync your data to the web cloud. Donwload or visualize your data to any device with a web browser.

Compare your fasting with different body data

Compare your fastings to other in app measurements like weight, and ketones

Compare your data with other users

Check how you perform compared to other users

Amazing support

Our support team is always here for you. Ask us anything about fasting or app usage. We will do our best to help you. Are response rate is under 2 hours.

Watch Our Promo Video

Our video will explain what fasting actualy is and how to use the app.

It's time to change your life

Downloaded over 100 000 times. Best rated intermittent fasting app on the store! Get Zero Calories free fasting app!
We say you won’t look back.