Zero - Simple Fasting Tracker

Zero - Simple Fasting Tracker

Zero - Simple Fasting Tracker

By Big Sky Health

  • Category: Health & Fitness
  • Release Date: 2016-12-23
  • Current Version: 4.9.3
  • Adult Rating: 17+
  • File Size: 266.49 MB
  • Developer: Big Sky Health
  • Compatibility: iOS 11.0+
Score: 4.85
From 303,199 Ratings


Zero is the world's most popular fasting app. As seen in Women’s Health, The Tim Ferriss Show, The Drive and more. Unlock the power of intermittent fasting to improve your health and manage weight. Zero’s advisory team includes some of the world’s leading doctors and researchers, including our Chief Medical Officer Dr. Peter Attia, who guides our fasting protocols and content creation. Reach your healthy weight goals no matter what diet you follow - from keto, or low carb, to simple calorie counting - and unlock the full longevity benefits of fasting through Zero’s expert guidance and content. FREE ZERO FEATURES TIMER - Set your goal, start your timer, stay on track now with Siri support and iOS 14 widgets! We’ll be with you from start to finish with reminders and insights to keep you motivated. LEARN - Fuel your fast with our ever-growing content library curated by Chief Medical Officer, Dr. Peter Attia. STATISTICS - Chart your progress and map your journey with an all new calendar view. Sync with Apple Health to track health markers like weight, resting heart rate, and sleep to see how they evolve with your fasting practice. JOURNAL - Reflect on how you feel during your fasts. We'll graph your moods so you can track trends and adjust over time. CHALLENGES - Opt into Challenges that align with your goals, invite friends, unlock Achievements, and stay motivated with guidance from our experts and the chance to win exclusive prizes. ZERO PLUS PREMIUM FEATURES Unlock all of the benefits of fasting with Zero Plus. CUSTOM PLANS - Fast track your fasting goals with a personalized protocol and adaptive recommendations from our team of experts. PREMIUM CONTENT - Cut through the noise with an exclusive, ever-growing library of videos, articles, audio segments, and Q&As from fasting experts like Dr. Peter Attia. FASTING ZONES - Know what's happening in your body so you can stay motivated to reach key metabolic milestones. ADVANCED STATISTICS - See how your fasting practice correlates with other health markers like weight and heart rate. Spot trends and adjust your behavior to stay on target. ASK ZERO - An expert in your pocket. Submit your fasting questions, then tune in for a chance to get answers from experts like Dr. Peter Attia. CUSTOM PRESETS - When your fasting needs are more unique than our popular presets, you can create your own. ADVANCED JOURNAL WITH IN-THE-MOMENT MOTIVATION - Feeling hungry? Log your mood and receive responsive content including exclusive Fasting Meditations. With Zero you can quickly start your fast based on science from leading doctors and researchers. • 16-HOUR FAST, or the 16:8 Intermittent Fast, used by celebrities when preparing for blockbuster films and millions of Zero users to manage weight. • CIRCADIAN RHYTHM FAST, based on research by Dr. Satchin Panda (Salk Institute), this 13-hour fast starts around sunset to align your eating window with your body’s clock. Zero automatically calculates the daily sunset for you. • 18-HOUR FAST, or 18:6 for more advanced fasters • Other popular fasts include OMAD (one meal a day), 20:4 fast and custom fasts up to 7 days • Unlock achievements to celebrate milestones and stay motivated Choose your favorite fasting protocol and Zero will track your progress on your iPhone or Apple Watch with Apple Health integration to sync your weight, resting heart rate and sleep. Zero Plus terms: Payment will be charged to the credit card connected to your iTunes Account when you subscribe. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Manage your subscription by going to your Account Settings. Read more terms & conditions: Terms of use: Privacy policy:


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Bug Still Present

When you go to “Total Fasting Hours” under the Me tab, when you press and hold on a column the entire app crashes instead of displaying the an overlay of the number of hours
By Michael.Suchecki

Probably only useful for Intermittent Fasting

I’m not doing intermittent fasting, but as soon as I finished my fast the timer started counting the hours to my next fast, assuming I’m going to repeating the 5 days again next week. Very annoying, I hate how “fasting” has become synonymous with trendy Intermittent fasting, it’s like people can’t fathom that someone would do an actual fast. So I can’t recommend the app for actual fasters, and it’s not terribly useful anyways except to see your progress visually. I also feel the way they gamify fasting, using awards and the timer and what not to encourage you to do as many fasts as possible so that you’ll keep using their app is probably harmful. Fasting a lot can have serious health risks, it’s not something you should just do to earn points on an app.
By groundflax

Awesome app that helps me loose weight

I like interface of this one fasting app.
By Olekna2.0

Zero Plus - frozen

I downloaded Zero 5 days ago and upgraded to Zero Plus (paid subscription). Since then the app screen is frozen and never worked again. I contacted support (Jeff), but it was never corrected. I stopped my subscription.
By haycampers


When I hit 200 fasts, I’m deleting this app. The annoying 8:00 and 10:00 “How are you feeling?” - Even after turning it off constantly and it goes back on, is getting old...
By Owen Davidson

No more journal notifications!

I have been using the app for almost a year and have really liked it, but after the last update twice daily journal notifications pop up. I’ve tried turning them off and deleting them, but they always come back. It’s making me want to delete the app and try something else.
By jw12529

Great tool

Get app to help track goals.
By Mike027

Lots of unavailable features

A lot of the app features are not available because they are pushing their expensive paid app, Zero Plus. The free Zero still has a fast timer and ability to do challenges, but much of the content is walled off. It’s annoying that the app makes it seem as if you can watch videos, etc., but then you just get a popup nudging you to buy the $50/year version.
By Anonymous783325

reminders still show

I delete the journal reminders and they come back. I can’t save them with no weekdays set. This app is a battery hog.
By pilotrtc

Great app!

Makes fasting really easy. Amazing how just having the timer on the app helps me to stay on track. And all the resources for learning about fasting are excellent too! 👍👍
By SorenHarrison


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