Zero is the world's most popular fasting app.
It’s an intuitive tracker with healthy fasting tools.
Unlock the power of intermittent fasting to improve your health.
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. 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 the option to sync with Apple Health. We’ll help you 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.
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 - Chart your fasting journey. Track your time spent in each Fasting Zone. See how your fasting practice correlates with other health markers. Spot trends and adjust your behavior to stay on target.
ASK ZERO - For all those times a question pops into your mind mid-fast, Ask Zero is here to help. Submit your fasting questions, then tune in for a chance to get answers from experts like Dr. Peter Attia. What could be better than having an expert in your pocket?
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 like Hugh Jackman and Halle Bailey when preparing for blockbuster films
• 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
• Earn BADGES to celebrate milestones and stay motivated
• Stay accountable with GROUP FASTS and special events
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.
Pricing & terms:
Zero Plus offers an auto-renewing monthly subscription at $9.99/month and an auto-renewing yearly subscription at $69.99/month.
Payment will be charged to the credit card connected to your iTunes Account when you confirm your subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. You may manage your subscription by going to your Account Settings.
Read more terms & conditions:
Hi Zero crew,
Today’s release includes various bug fixes.
Thank you for your continued feedback and support.
Wishing you well,
Ratings and ReviewsSee All
We have to sign up now and we can’t edit fasts anymore. Going to look for a new app :(
WHY DIDN’T YOU WARN ME?
This “update” wrecked a perfectly good app by forcing facebook / email sign up. I’m appalled this was issued without warning long time users. I’m tired of entitled app developers and unnecessarily intrusive apps. *DELETED*.
I do full extended fasts, and I’m always alone. This app is a personal cheerleader and companion during your fast. And you get to see that other people on this planet are fasting too—you’re not alone. You can tract your stats, even your mood and see your progress. This is huge for motivation.
This app is a must have for anyone fasting.
It makes a huge difference.
One function I wish this app had was a pop up of the physiological milestones that occur during a fast, ie: Day 2 you are now suppressing the hormone Ghrelin and autophagy is commencing...something like that would be hugely motivating. And I’ve not seen it anywhere.
Love this app.
- Big Sky Health, Inc.
- 240.3 MB
- Health & Fitness
Requires iOS 11.0 and watchOS 4.0 or later. Compatible with iPhone, iPad and iPod touch.
- Age Rating
- Frequent/Intense Medical/Treatment Information
- © 2020 Big Sky Health, Inc.
- In-App Purchases
- Zero Plus Subscription $13.49
- Zero Plus Subscription $66.99
- Zero Plus Subscription $13.49
Up to six family members will be able to use this app with Family Sharing enabled.