Zero: Fasting & Health Tracker

Zero: Fasting & Health Tracker Wiki

Written by Big Sky Health


Rated 4.8513 From 317,106 Votes
$ 0.00
  • Last Updated: 2021-04-06
  • New version: 4.13.2
  • File size: 651.73 MB
  • Compatibility: Requires iOS 11.0 or later. and Android 4.4. KitKat or later

Zero: Fasting & Health Tracker


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Zero: Fasting & Health Tracker is an iPhone and Android Health & Fitness App, made by Big Sky Health. Today, it has gone through many interations by the developers - Big Sky Health, with the latest current version being 4.13.2 which was officially released on 2021-04-06. As a testament to the app's popularity or lack thereof, it has gathered a total of 317,106 Reviews on the Apple App Store alone, with an average user rating of 4.8513 out of a possible 5 stars.

How does it Work?


Unlock the power of intermittent fasting to lose weight and improve your metabolic health. Zero’s expert guidance, goal-based fasting plans, personalized insights, and advanced tracking can help you manage your weight, boost energy, reduce inflammation and live a longer, healthier life. Rooted in scientific research and backed by Zero’s Chief Medical Officer Dr. Peter Attia, use Zero to reach healthy weight loss goals and enjoy your favorite foods no matter what diet you follow - keto, low-carb, medetertanian, vegan, vegetarian, paleo, macros, intuitive eating or calorie counting. Featured in Women’s Health, The Tim Ferriss Show and more, Zero is the world’s most popular fasting app. Get started for free today. FAST TRACK YOUR GOALS TIMER - Set goals, track your fasts, and stay on track with Siri support and iOS 14 widgets. CUSTOM PLANS - Personalized protocols and adaptive recommendations help everyone from first-time fasters to advanced practitioners. SUSTAINABLE APPROACH - Adjust how long and how often you fast and enjoy your meals when you’re not fasting. MONITOR PROGRESS PERSONALIZED INSIGHTS - See how your fasting practice correlates with health markers like weight, heart rate, sleep, and blood glucose. Spot trends and adjust behaviors to stay on target. FASTING ZONES - Understand what's happening in your body to stay motivated to reach your goals. JOURNAL - Reflect on how you feel during your fasts. We'll graph your moods so you can track trends over time. GET GUIDANCE FROM EXPERTS PREMIUM CONTENT - Cut through the noise with an exclusive, ever-growing library of hundreds of videos, articles, audio segments, and Q&As from health experts like Dr. Peter Attia and Kanchan Koya PhD. HOLISTIC APPROACH - Learn about multiple facets of health, including metabolic health, mindful eating, gut health, inflammation, blood sugar, hormone health, hunger management, sleep health, exercise, and more. ASK ZERO - Submit your questions and tune in to get answers from experts. STAY ACCOUNTABLE AND GET SUPPORT CHALLENGES - Fasting is more fun with friends. Join seasonal events and group fasts that align with your goals. Stay motivated with guidance from experts and a chance to win exclusive prizes. ACHIEVEMENTS - Unlock achievements to celebrate fasting milestones and stay motivated. APPROACHABLE FASTING PLANS FOR EVERY BODY • 13-HOUR FAST, based on research by Dr. Satchin Panda (Salk Institute), this 13-hour or “Circadian Rhythm Fast” aligns your eating window with your body’s clock. • 16-HOUR FAST, or the 16:8 Intermittent Fast, used by celebrities, athletes, and millions of Zero users to manage weight. • 18-HOUR FAST, or 18:6 for more advanced fasters. • Other popular fasts include OMAD (one meal a day), 20:4 fast and custom prolonged fasts up to 7 days Track your progress on your iPhone or Apple Watch with Apple Health integration to sync your weight, resting heart rate and sleep. Download the Zero app to get started for free, or unlock premium features with Zero Plus. Payment for Zero Plus will be charged 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: https://www.zerofasting.com/terms-of-use Privacy policy: https://www.zerofasting.com/privacy-policy

Top Reviews

  • Should have tried this sooner


    By Shuttle:567
    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.
  • Used this app to lose almost 70 lbs in 3 months


    By Online-Seller
    Then the pandemic happened and I stress ate my way through. Now there’s a vaccine coming and I want to get back on track again. I highly recommend this app for weight loss, health, energy, anti-aging, etc. I wish I’d known YEARS AGO that fasting was healthy and a real way to stay healthy and fit. We were lied to fir decades, but it’s not too late to take control of our bodies and health! I tried a lot of apps for fasting and this is the most flexible. You can edit your start time after starting the fast so if you forgot to start the app, but remembered to fast, you’re all set. It has some scheduled routines and a lot of freestyle, so lets you do you. Notifications are inspiring as it shows how many other people are fasting. You can eat a wider variety of foods if you fast regularly with far less negative impact on your weight and health. I don’t feel like a failure or dread coming back to this. I got anew iPhone and it triggered me to get going again. I’m really excited! Join me in a fast today!
  • Very useful


    By reyenoe
    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.
  • Best fasting tracker in the market


    By musicstix
    I’ve been intermittent fasting for about 2 years on and off. When I’m fasting, I find it extremely motivating to track my taste on Zero. I love that it has a few of the standard preset fasting times, but more recently I’ve been using the custom fasts which is an excellent feature. I’ve been back and forth on the 16-8 and 20-4 fasts so I set my custom to 17 hrs at the moment knowing I can build my way back up to 20 hrs. When I was regularly fasting and tracking on Zero consistently for about 3 months, I lost 15 lbs pretty effortlessly. I’ve fallen off the wagon a few times but I’m back on now and am exciting to keep tracking. The UI is really beautiful and easy and I love that it automatically updates my weight from my Bluetooth scale through the Health app. The only update I’d like to see is to have a more interactive view with the recent fasts feature. I feel like this page could be more helpful. Overall, 100% recommended to anyone looking for an IF tracker.
  • An essential download for weight loss


    By SharkosaurusRex
    I’ve tried countless diets and none of them ever felt good. I have severe anxiety and major difficulties with memory and would get torn between eating out with friends or sacrificing my diet, both options sending me into an attack. Until I found Intermittent Fasting. It’s the first time I’ve felt truly free and in full control of my eating, with the added bonus of giving me tons of energy. And there’s no way I would’ve been able to lose as much weight (20 pounds in less than two months!!) without this incredible app. It’s simple, efficient, sends beautifully easy notifications, and even has a dark mode. The app shows you how many people are fasting with you, has options for the different kinds of fasts, helpful information, and much more. If you’re even remotely curious about weight loss, control over eating, or IF at all, you need this app. It costs a whole 0 dollars, so why not give it a shot?
  • Coaching function is frustrating


    By Gndedgirl
    My daughter turned me onto this app. She’s followed Peter Attia for a long time. I really like the functionality, and the videos in the articles are great. I signed up for the coach portion because I really wanted to see the statistics. I’m two weeks in and learning how to fast suit me best as well as what is making for better weight loss for me. There was an initial questionnaire, and all the coaching seems to be based off of that with no way to modify or change preferences. The modifications week to week in the fasting regimes are minor but I want to add a couple of 18 to 20 hour fast in my week, and the app doesn’t allows me to do that. I could just do it and log it, but I get a lot of motivation about having the timer. I’m also doing over 110 hours in fasting, even if I’m not making my 16 hour goal every single day because I’m doing longer fasts some days, but then for the next week the coach recommends a 80 hour fast regime with options that don’t have much variety to them. Very frustrating given the cost of the app.
  • Actually free and very useful


    By Goatturkey
    This app is simple to use. Very intuitive. I only have the free version and I don’t get hounded by adds which is great. I don’t mind paying for Apps- I just basically refuse to pay subscriptions. I tried a few apps for fasting together and I didn’t like the others nearly as much as this one. I love that you can just hit a button to start a fast and another one to edit your start or stop time (meaning if I ate 30 mins ago but didn’t mark my fast as ending). The other apps were way to ridged. They would make you schedule all fasts for the week then would even automatically start and stop them. That’s not how my life works. I can’t eat and fast at the exact same second every day. That’s why I love Zero. It isn’t annoying. Doesn’t make you hate yourself if you break a fast lol. It’s just a great simple tool there to HELP you. Not there to overpower and run your entire schedule
  • Needs a clearer way to address cheat days!


    By Albers_David
    Great app. I’d love for a few different functionalities. 1... the calendar(and notifications) to be more functional for scheduling different lengths of fast for the week in advance because the biggest thing is I forget to think about what time it is and when my fast will begin/end. Sometimes I’ll forget that it’s 30 minutes until my fast end time and I have to make food and then eat which pushes me past the cutoff. I want to automate more of my fasting schedule. 3 days i fast for 16:8 and 2 days I will fast closer to a 20:4. 2... you’re gamifying fasting, which is good, but this is problematic when we cannot schedule cheat days or a clearer way to incorporate random schedule changes into the dietary restrictions. There are certain days that I know my eating schedule won’t follow a normal fasting pattern but I can’t indicate that in the app in any way so it ends up looking like I had a 24 hour eating period or something like that. It’s messing up the data and usefulness.
  • GREAT APP


    By Amderrn
    I have been using the original Zero app for approximately a year now and love it. Just as is, the original is a fantastic app for tracking fasts. It also has graphs available to show your progress as well as the ability to log weight and other health info which you can sync to other apps (optional, of course). BUT NOW... WOW!! I’m on day 3 of the free trial of the new ZeroPlus and it’s amazing!! It will break down your fast in real time and describes in detail what stage you’re in with a detailed account of what your body is doing at that time. There are tons of other new features with the PLUS as well. I love the “Learn” center and it’s large amount of science-backed information on fasting as well as exercise, different diets, recipes, just to name a few! I’m still learning all the new features for I’ve only scratched the surface. But I will definitely be purchasing ZeroPlus once my trial is over. Highly recommend!!
  • You guys messed up with the recent update


    By Stromba926
    One of my favorite apps. I used it all the time for my fasting journal. I just got done deleting it after the new version forces you to login your personal information… Not something anyone wants! I kept declining and every time I declined it would refuse to allow me to set the timeframe in custom fasting option. If I did not allow notifications it also prevented me from doing a custom fasting option. it now tries to link you through Facebook etc. All the different options that you added cannot outweigh the fact that you’re definitely mining for more information on your customers and this is a deal breaker. I’m not going to be forced to give my information and allow notifications when I don’t want them. The old version I just entered what time I started, what time it ended and it worked fine now I have to go look for another app or some other means of tracking my progress for fasting. Whoever came up with this so Called upgrade needs to have their head examined. People do not like being forced into corners where they have to allow notifications and or give their personal information!!!!

External Links

Big Sky Health Official Website

Download for Free on On iTunes
Download for Android

Disclaimers:
This page was last edited on 2021-04-06.
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