Zero: Fasting & Health Tracker

Description

Stop counting calories and start intermittent fasting with Zero, the world’s most popular fasting tracker and metabolic health app.
Zero maximizes your body’s natural fat-burning ability between your last meal today and your first meal tomorrow. Based on the science of intermittent fasting, we help you extend your natural overnight fast to increase fat burning and accelerate weight loss. By building simple, science-backed habits, you’ll lose weight, preserve muscle, and live better, longer. Best of all, you’ll do this without counting calories, tracking macros, or restricting foods.
WE’RE #1 FOR A REASON
Zero Members have lost millions of pounds — and that’s no accident. Featured in GQ, Good Housekeeping, Men’s Health, Fortune, Techcrunch, Women’s Health, The Tim Ferriss Show, The Joe Rogan Experience, and more, Zero is the world’s most popular intermittent fasting app for all skill levels, from those embarking on their first health journey to expert health and fitness coaches.
ZERO MEMBERS HAVE LOST MILLIONS OF POUNDS
Zero is a science-backed, evidence-based approach to losing weight and burning fat effectively. In just 28 days, you'll start to see transformative results, beginning with weight loss and extending to better mood and improved energy, all while transforming your relationship with food. By the 3-month mark, you'll have improved your body composition along with metabolic health markers including waist circumference, fat mass, blood pressure, glucose, and insulin. And the best part? You’ll never need another diet again.
START WITH JUST ONE TAP
The world's most popular intermittent-fasting Timer helps you track your fasts, your progress, and your goals. Start your Timer and stay on target with all the popular intermittent-fasting types, including:
• 13-HOUR FAST, or “circadian- rhythm fast,” based on research by Dr. Satchin Panda (Salk Institute) that aligns your eating window with your body’s internal clock
• 16-HOUR FAST, or the 16:8 intermittent fast, used by celebrities, athletes, and millions of Zero Members to manage weight and improve metabolic wellbeing
• 18-HOUR FAST, or 18:6, for more advanced fasters
• Other popular fasts such as OMAD (one meal a day), the 20:4 fast, and custom prolonged fasts of up to 7 days
BURN FAT FASTER
Zero has helped millions of Members form new habits and achieve their weight-loss and health-gain goals. In just a few weeks, you’ll shift your metabolism towards burning more fat with real-time tips, personalized stats, and our exclusive Fat-Burning Mode. Discover insights into the changes your body is experiencing, get daily guidance, and break through plateaus with this one-of-a-kind approach powered by the science of intermittent fasting.
EDUCATE

Learn the science behind the daily habits that help you succeed on your journey towards weight loss and health gain. Every week, the Zero science team distills cutting-edge health research down to actionable steps and delivers the latest insights on everything you need to know to get and stay healthy. You’re never alone with Zero as your guide.
MOTIVATE
Stay focused with expert-led, science-backed content, community Challenges, achievements, and more. Zero is your partner for building healthy habits that propel you towards better, lasting health.
REWARD
Streaks and Badges celebrate your daily progress throughout your health journey, helping you make progress in the short term while achieving your long term health goals.
Download Zero to get started.
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.zerolongevity.com/terms-of-use
Privacy policy: https://www.zerolongevity.com/privacy-policy
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In-Apps

Zero Plus Subscription
548.00 H$

Screenshots

Zero FAQ

  • Is Zero free?

    Yes, Zero is free to download, however it contains in-app purchases or subscription offerings.

  • Is Zero legit?

    🤔 The Zero app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.

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  • How much does Zero cost?

    Zero has several in-app purchases/subscriptions, the average in-app price is 548.00 H$.

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User Rating

4.75 out of 5

2,179 ratings in Hong Kong SAR China

5 star
1,813
4 star
261
3 star
66
2 star
10
1 star
29
Ratings History

Zero Reviews

After 1,921 fasts..

foxanng on

Hong Kong SAR China

I’ve been a loyal user of this fasting app for the past 5-6 years and have absolutely loved it. However, with a heavy heart, I must say goodbye. Over the past few years, each new release has made the app more cluttered and less user-friendly. The recent update is the last straw, making the core logging function a terrible experience. It’s disheartening to see such a great app go downhill. I hope the developers take this feedback seriously and consider simplifying the user experience again, although I doubt it's possible.

Bugs with Oura ring integration

Zakaex on

Hong Kong SAR China

Love this app for its design and features, however the only disappointing thing about it are the constant bugs that it has with automatically pulling activity data from my Oura ring and that I have to regularly add it myself

Useless

Thc23 on

Hong Kong SAR China

This app is not worth the money. I constantly tells me to start my fast when I’m actually already in the fasting period. It doesn’t offer any suggestions when to start the next fast, for example I’m doing 16:8, why doesn’t it remind me when the 8 hour eating window is over? It’s also told me I have done 35 fasts which I haven’t.

Rubbish

Kinson_Ng on

Hong Kong SAR China

If u don’t pay or not scribe, u cannot try any function even not stat the fasting clock. But before that , the apps already gather your info like age or DOB

Finally I start fasting 😊

Kiyo HK on

Hong Kong SAR China

thanks for the app, I am finally determined to start fasting

Forces you to pay in the end

起個名字好難啊臥槽 on

Hong Kong SAR China

As captioned

Overpriced premium features keeps me from buying

Lexnerd on

Hong Kong SAR China

The app looks gorgeous but almost nothing in it justifies the pricing. I pay premium subscriptions for workout and food tracking, and the annual subscription price of Zero is more than both combined. All just for a slick presentation of aggregated content that’s available for free on the internet, along with some metrics that epitomise the over quantification of our lives. Basic features are little more than a glorified timer and calendar that, frankly, my other apps or ingrained TRF habits have built-in. It’s a great design and I could have genuinely used some of the tracking insights but not nearly enough to justify the price tag. This app will probably sit on my Home Screen for a little while longer before joining the long list of other health apps that end up hidden in my App Store “purchased” tab.

Why do they keep making the user interface worse?

Halstarino on

Hong Kong SAR China

Like per the title, it just keeps getting harder and harder to do things quickly. Why are they hiding the delete button, who knows…

Please add GKI index into the chart

Heymond Leung on

Hong Kong SAR China

It is a good app for fasting and Keto-ing, apart from weight,glucose,ketone tracking hope that we can have GKI as well!

Unable to sync Health App data

CatMa08 on

Hong Kong SAR China

I’ve followed all the steps and still having trouble syncing my health data to Zero so I can get a more accurate account of my fasting stages. It is a disappointment. If this doesn’t work I’ll definitely be cancelling my premium after the 7days free trial.

Store Rankings

Ranking History
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