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Zero - Fasting Tracker

By Courtney Circle

This app is only available on the App Store for iOS devices.


Zero is a simple fasting tracker used for intermittent, circadian rhythm, and custom fasting. Choose your favorite fasting protocol and Zero will track your ongoing progress. Export your data to a spreadsheet for complete control.

Zero supports the following fasting types:

16-Hour Intermittent Fast: Popularized by Hugh Jackman and Dwayne “The Rock” Johnson as a daily fast to trim extra pounds. It is common to fast after dinner to around lunch the following day.

Circadian Rhythm Fasting: Based on the research from Dr. Panda (Salk Institute), participants are encourage to fast 13 hours per day, starting each fast at or before sunset. Zero uses your location to calculate the daily sunset time for the best possible accuracy.

Custom Fasting: Setup a custom program to meet your fasting goals. You choose your fasting hours per day, and days per week.

What's New in Version 2.0.1

Fixed a few minor bugs.

iPhone Screenshots

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Customer Reviews

Simple, just as it should be

The app is fairly simple. It consists of a single screen for information, leaving confusing navigation to other, less intuitive apps. The layout is great for watching a continuously populated bar graph of your fasting progress, and the developers even include push notifications to signal when you’ve reached your fasting goal. The only minor addition I would like to see is the addition of 48-hour+ fasts. The version history says the app supports 24-hour+ fasts, however I haven’t been able to figure out how to utilize this feature. Maybe someone can help? Thanks

Good so far

I downloaded this app recently because I’m starting a journey in my life right now where I feel the need to slow down so I can gain perspective and understanding on my self and therefore go on my own pace. Even though I am not religious and one of my goals in using this app is to lose weight, fasting to me is one of those things that enlighten you on habits that might be problematic to your progress or mind set. But so far the app has been on point on helping me keep track and keep on track.

Good motivation, could be more flexible

I do a lot of 36-48 hour fasts, which I can't program the app to do (although it will continue tracking until I tell it to stop). Also, I don't really care about night eating. And the science section is.... a bit lacking? (Also lacks any science about night eating which is, a bit odd, since that's a prominent feature of the app)

But anyways its purpose is to track your fasting and hold you accountable and it totally succeeds in that, it could just be a bit more comprehensive.

Zero - Fasting Tracker
View in iTunes
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 2.0.1
  • Size: 47.2 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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