Zero: Fasting & Food Tracker

Zero: Fasting & Food Tracker

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Logo of Zero: Fasting & Food Tracker

Zero: Fasting & Food Tracker for Longevity and Metabolic Health

Optimize your body composition with the science-backed intermittent fasting app. Track protein goals, log meals with AI, and master your health habits with data-driven insights tailored for real results.

Download on App Store

Publisher

Zero Longevity Science, Inc.

Category

Health & Fitness

Downloads

11M+

User Rating

4.8/5

Total Ratings

582K+

Locales

1

Precision at a Glance

Discover the interface used by 11M+ users.

Zero app promotional screen with five star ratings user testimonial and app store awards

Zero app promotional screen with five star ratings user testimonial and app store awards

Zero app interface displaying an intermittent fasting timer with fat burn status and schedule options

Zero app interface displaying an intermittent fasting timer with fat burn status and schedule options

Zero app interface showing intelligent meal tracking with AI photo logging for macros and protein.

Zero app interface showing intelligent meal tracking with AI photo logging for macros and protein.

Promotional graphic for Zero app showing a smiling woman with a protein shaker and text about fasting and protein benefits.

Promotional graphic for Zero app showing a smiling woman with a protein shaker and text about fasting and protein benefits.

A mobile interface of the Zero app showing a personalized protein score of 94 and a list of logged healthy meals.

A mobile interface of the Zero app showing a personalized protein score of 94 and a list of logged healthy meals.

The Zero app water tracking screen showing a progress bar and daily hydration goals

The Zero app water tracking screen showing a progress bar and daily hydration goals

A red screen from the Zero app listing healthy habits like eating right and sleeping better with options to sync with other health apps.

A red screen from the Zero app listing healthy habits like eating right and sleeping better with options to sync with other health apps.

Zero app interface showing healthy challenges for tracking fasts, meals, sleep, activity, mood, and events.

Zero app interface showing healthy challenges for tracking fasts, meals, sleep, activity, mood, and events.

Scientific guidance on fasting and weight loss by Dr Naomi Parrela on the Zero app

Scientific guidance on fasting and weight loss by Dr Naomi Parrela on the Zero app

Advanced Tools for Lasting Longevity

The tools that make this app stand out, trusted by 11M+ users.

⏱️

Smart Fasting Tracker

Stay consistent with intelligent timers and data-driven insights that visualize your progress through every metabolic stage.

📸

Frictionless AI Logging

Snap a photo of your food for instant macro insights. No more tedious manual entry—just clear visibility into how you fuel.

📈

Adaptive Protein Scoring

Protect muscle and improve body composition with personalized protein targets that adapt to your specific activity and goals.

About the app

Everything you need to know about Zero: Fasting & Food Tracker.

Description

Zero is the all-in-one fasting tracker and nutrition app built for real results. Most fasting and weight loss apps stop at simply tracking fasts or calories. Zero connects the full picture — fasting, protein, meals, hydration, and habits — so you actually change your body composition, not just your eating schedule. Here’s how Zero helps you get there: • Track your intermittent fasting — Engage timers, streaks, and insights keep you stay motivated and consistent on your entire fasting journey. • Log meals the smart way — Skip the tedious manual meal entry routine. Snap a photo and get instant macros, protein composition, and clarity on how effectively your meals support your goals. • Hit your Protein Score — Track your personalized daily protein target that adapts to your weight and goals. Better protein = better satiety, better muscle retention, better weight loss. Zero makes it automatic. • Complete the equation: Fasting + Protein — Most people fast or track meals. Zero brings them together so you lose weight, protect muscle, and avoid the pressure and guilt of traditional calorie trackers. • Stay hydrated to power your fasts — Water tracking helps you maintain energy, reduce cravings, and support metabolic function throughout the day. • Build healthy habits that actually matter — Track movement, sleep, mood, and other daily pillars that reinforce your fasting and fueling routine. • Challenge yourself — Hit protein targets, maintain fasting streaks, and stay accountable with motivating challenges built around outcomes, not vanity metrics. • Learn the real science — Understand how fasting, protein, and hydration work together for sustainable weight loss and metabolic health — with insights from leading experts. • See measurable progress — Watch your streaks grow, your protein consistency rise, and your body composition improve with clean, insightful trend views. Whether you’re starting out or optimizing an existing routine, Zero gives you the structure, guidance, and clarity most apps miss. Zero includes a free version and an optional subscription for premium features. A free trial is available. 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

Latest Version

7.0.1

Size

216.3 MB

First Released

Dec 23, 2016

Master Your Metabolism for Life

Join 11 million people using data-driven insights to lose fat and protect muscle. Start your science-backed journey to longevity today with Zero.

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FAQ

Frequently Asked Questions

Everything you need to know about Zero: Fasting & Food Tracker

What is the Zero app?

Zero is an all-in-one fasting tracker and nutrition app. It helps users achieve real results by connecting fasting, protein intake, meals, hydration, and habits for body composition change.

Does the Zero app track intermittent fasting?

Yes, the Zero app tracks intermittent fasting. It includes engaging timers, streaks, and insights to keep users motivated and consistent throughout their fasting journey.

How does Zero help with meal tracking?

Zero offers intelligent meal tracking. Users can snap a photo or type to get instant macros, protein composition, and clarity on how effectively meals support their goals, skipping manual entry.

Can I track my protein intake with the Zero app?

Yes, the Zero app tracks personalized protein intake with a daily Protein Score. This score adapts to the user's weight and goals, promoting satiety, muscle retention, and weight loss.

What is the benefit of combining fasting and protein tracking in Zero?

Zero combines fasting and protein tracking to provide better results. This integration helps users lose weight, protect muscle, and avoid the pressure of traditional calorie trackers.

Does the Zero app track water intake?

Yes, the Zero app tracks water intake. Water tracking helps users maintain energy, reduce cravings, and support metabolic function throughout the day while powering their fasts.

Does the Zero app have a free version?

Yes, Zero includes a free version. It also offers an optional subscription for premium features, and a free trial is available for Zero Plus.

How do I manage my Zero Plus subscription?

Users manage their Zero Plus subscription by going to their iTunes Account Settings. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the period ends.

What kind of healthy habits can I build with Zero?

Zero helps users build healthy habits beyond fasting. These include tracking movement, sleep, mood, eating right, managing weight, and exercising daily to reinforce routines.

Does Zero offer expert guidance on fasting and nutrition?

Yes, Zero provides expert-backed guidance. Users learn how fasting, protein, and hydration work together for sustainable weight loss and metabolic health through insights from leading experts.

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