Zero is the world's most popular fasting app.
An intuitive tracker with essential fasting tools.
Harness the power of intermittent fasting to improve your health.
Now, with Zero Plus, we bring all new premium features to millions of fasters.
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.
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 the most popular presets, you can create your own. Name your fasting type and save it to your favorites.
ADVANCED JOURNAL WITH IN-THE-MOMENT MOTIVATION - Feeling hungry? Log your mood and receive responsive content including exclusive Fasting Meditations.
With Zero and Zero Plus 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 your 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.
Zero Plus pricing & terms:
Zero Plus offers an auto-renewing monthly subscription at $9.99/month and an auto-renewing yearly subscription at $69.99/year with a limited time launch offer of $49.99.
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 about our terms & conditions:
Hi Zero crew - This is the biggest update in Zero history—with Zero 4.0, we’re launching Zero Plus: Your Personal Fasting Coach. After you update, head over to Learn for a video walkthrough of all the incredible new features. The Zero you know and love remains free, with some upgrades including a brand new Timer.
Try a 7-day free trial of Zero Plus to get access to new, premium features including an advanced Timer with Fasting Zones that keep you motivated to reach metabolic milestones, exclusive content from fasting experts like Dr. Peter Attia, advanced Statistics that correlate fasting data with weight, resting heart rate, and sleep, custom Fast Presets, and a responsive Fast Journal with in-the-moment motivation to keep you on track.
Fast forward to better health with Zero Plus: Your Personal Fasting Coach. We can’t wait for you to try it out.
Wishing you well,
Ratings and ReviewsSee All
Full Featured App With Nice User Interface
I’ve been on a calorie restricted diet for years making very slow progress on my weight loss goal. I decided to start recording the time of my last food each day knowing that the time you eat may be as important as how much you eat. It quickly became a burden and a clutter on my calendar so I went looking for an intermittent fasting app. Since my original interest was just recording the time of my last meal I wanted a simple low/no cost app. I found only one free app that didn’t have in-app purchases to goof up features. Zero was that app plus it had the bonus of a 4.9 rating. To my surprise this is a full featured app with a very high quality UI . It has historical tracking of your fasts and can read or write to Apple Health. The app had so much IF learning information that I began a 16:8 schedule. I’m only on day 4 but my progress has improved while keeping exactly the same calorie goal. No matter what your needs to track IF or TRF you are in for a treat with a professional app to assist you.
Should have tried this sooner
I’m 47. I was about 40 pounds overweight, five days ago. Now I’m only 30 pounds overweight. I’ve alternated between the 16:8 and 18:6 fasts and been a diet Nazi on myself. I’ve switched to a Mediterranean diet, and probably eat between 1,000 and 1,500 calories a day (I don’t keep an exact count, and that’s just a rough estimate.) Basically, I’m eating about half of what I normally do in food, and have cut out all alcohol and nighttime snacking. Have tried to walk/jog about a half mile a day and run around the yard more with my 5-year-old. I imagine if I exercise harder, I’ll turbo boost this process even more. On a scale of 1-10, my hunger pangs while fasting have sometimes hit about a 5. But it’s totally manageable and takes just a little bit of discipline. With this app’s countdown timer, it’s easier to hang in for the last hour or two, because the end is in sight. And when you do eat, you want to eat as healthy as possible so you don’t feel like the fast was for nothing.
My beer belly’s days are numbered.
I have been using the Zero app since March of 2019 and have found this app very useful to reach my health and other goals that I have. The developers keep improving the app in many useful ways such as improving journaling, adding more knowledge to the learn feature and improving the stability and function overall. If you are wanting to track your first fast, look no further my friends this is the app to get. Also be sure to check out their Oak meditation app, it is amazing.
One suggestion: I would love to see new features on the Apple Watch. For example have the fast tab show up on the Apple Watch that way I can quickly select the fast that I need.
Also if you could please add the Oak app to the Apple Watch and have the ability to select and download a meditation or breathe to the Apple Watch. This would be awesome to have while away from my phone, that way I can put on my AirPods and do a quick mediation or breathe session while on break or lunch.
Thanks for the hard work.
- Big Sky Health, Inc.
- 237.9 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 $49.99
- Zero Plus Subscription $9.99
- Zero Plus Subscription $9.99
With Family Sharing set up, up to six family members can use this app.