Zero: Fasting & Health Tracker 17+

Weight Loss & Metabolic Health

Zero Longevity Science, Inc.

    • Free
    • Offers In-App Purchases

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

What’s New

Version 5.46.0

Steady Improvements
Zero keeps getting better, one step at a time. We've made invisible enhancements that strengthen the core of your fasting companion. Each small change adds up, making your experience smoother and more reliable. We've even fixed a bug that was causing tiny text in widgets. As iOS evolves, we're right there with it, ensuring Zero remains your dependable ally in health.

If you have any feedback or questions, please contact our Support team at zerolongevity.com/support

Ratings and Reviews

4.9 out of 5
3.2K Ratings

3.2K Ratings

Ruxandra Bucos ,

You guys rock

I’ve been using the app since 2019, and I absolutely love it!

I feel like every time something like ‘mmm, I wish this were implemented a little differently’ crosses my mind, 2 weeks later an update pops up with the very change I was hoping for ❤️ (e.g. removing the ‘start eating window’ prompt that used to show up when you ended a fast)

Congrats on the amazing work! The app looks really good (love the design, the color palette, the emojis, everything) and behaves amazingly, the content is top tier and I love fasting with it. Doing a multi day fast as we speak, let’s goo 🚀

01004753 ,

A great app in general but an awesome app for fasting!

Update after 6-7mo.
I've managed to lose more than 10kg, hit my goal but setup a new one after quitting the usual fasting and continuing eating less and being a bit more careful. Kudos!
----
Love the UX, love how smooth it is, love it as an app. Next step would probably be an apple watch version. I guess.

AdaPopi ,

What is going on?

My timer has stopped at 31 hours into a fast. What is happening? Why can’t I time a longer fasting? I used to do this on a regular basis, and I am 733 consecutive fasts in on this app. Badges and whistles and all.
Extremely disappointed. Do I have to pay 50$ just to see the timer?
I did pay for a year however I couldn’t find any use for the “plus” feature and each time I have shared feedback I got nothing in return.
If I need to pay to use the timer, at least set up a decent price just for this… :(

Developer Response ,

Hi there – We're sorry to hear about this issue with the timer stopping and are here to help resolve it. A subscription is not required to use the basic timer in the free version of the app. Can you please send us an email at support@zerofasting.com and include any details about what's occurring so our support team can take a closer look? We'll be on the lookout for your email. – Team Zero

App Privacy

The developer, Zero Longevity Science, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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