Zero: Fasting & Food Tracker

Zero: Fasting & Food Tracker

Track Diet, Protein & Calorie

445K ratings
1382 reviews
#105 in top-grossing Health & Fitness
🌟 Lifestyle
💪 Health & Fitness
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 23, 2016
  • October 5, 2026

Features

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Zero: Fasting & Food Tracker screenshot #9 for iPhone
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About

This app tracks intermittent fasting and nutrition to help users achieve real body composition changes. It integrates fasting, protein intake, meals, hydration, and habits for a holistic approach to weight loss and metabolic health.

✓Intermittent fasting timers and streaks
✓Smart meal logging with photo recognition
✓Personalized daily protein target tracking
✓Integrated fasting and protein tracking
✓Water and habit tracking
✓Science-based insights on fasting and nutrition
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What users say

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What's New in Zero

7.15.0

October 5, 2026

Fasting, hands-free. This update makes Zero easier to reach when you're on the go, with enhanced Siri support for fasting and a quicker way into meal logging. • Fasting with Siri: Start, end, or check on your fast just by asking — try "Start my fast in Zero." Zero now works with Siri automatically, with no setup needed, and is updated for the new Siri in iOS 27. • Quicker Meal Logging: Add the new Log Meal control to your Lock Screen, Control Center, or Action button to jump straight into logging a meal. Requires iOS 18 or later. • Bug Fixes: Fixed an issue that could prevent logging your weight on iOS 27, and improved compatibility with the latest version of iOS.

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Subscriptions & In-App Purchases

Zero Plus Subscription

Access to Zero Plus features and content

$69.991 Year
7 Days trial
How to cancel Zero subscription ⁉️

Charts

Top Grossing

📉 105-2

Health & Fitness

This app dropped -2 positions in Health & Fitness chart.

Last updated on October 14, 2026.

Events

Read more about Zero Days of Summer

Zero Days of Summer

7-day 16:8 to nix BBQ bloat

Jul 15, 2025 — Jul 22, 2025

User reviews

Food tracker

The food tracker is not very good for me. I prefer to have an option to add food to a meal. It seems to me that you need to have all the food for that meal prepared and I put it at one time. Also I order to input meals in a specific meal section. On the upside. I really like the articles and update about getting into fat burning mode with movement
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Annoyed

I’m annoyed that I paid for this the calorie estimates are awful. I had a meal of 200 calories and it estimated it to be 2000. It’s pointless.

14 hour fast only available in paid version

Really stink that I can’t select a 14 hour fast unless I pay the subscription

Stop spamming me

It is nagging me to upgrade, look bro I’m not paying you $$$ for eternity.

Do not subscribe

This app wil not let you do the trial it will charge you through apple and then never let you unsubscribe please don’t download this app it your trying to get the feel of fasting

Developer apps

User experience

🐞

Reported Bugs

3 issues

Password reset problems

Bug

Inaccurate fasting time tracking

Bug

Inability to exit trial without subscribing

Bug
✨

Requested Features

6 requests

Custom fasting periods longer than 24 hours

Feature

Ability to edit fasting type and duration

Feature

Integration with more health/fitness apps

Feature

Water intake tracking

Feature

Personalized fasting recommendations

Feature

Improved data visualization and analytics

Feature

FAQ

What does the Zero app do?

Zero is an all-in-one fasting tracker and nutrition app designed to help users achieve real body composition changes. It integrates intermittent fasting timers, protein tracking, meal logging, hydration, and habit tracking to provide a comprehensive approach to weight loss and metabolic health.

What are the key features of Zero?

Key features include timers and streaks for intermittent fasting, smart meal logging with photo recognition for instant macro and protein analysis, personalized daily protein target tracking, water and habit tracking, and science-based insights from experts on fasting and nutrition.

How much does Zero cost?

Zero offers a free version with an optional subscription for premium features. A free trial is available for the premium subscription. Payment for Zero Plus is charged to your iTunes Account upon subscription.

Is Zero compatible with my device?

The provided description does not specify device compatibility. However, it mentions that payment for Zero Plus will be charged to your iTunes Account, suggesting compatibility with iOS devices. Users should check the app store for specific device requirements.

What are common use cases for Zero?

Common use cases include tracking intermittent fasting periods, monitoring daily protein intake to support muscle retention and satiety, logging meals efficiently, staying hydrated, building healthy habits like sleep and mood tracking, and learning about the science behind fasting and nutrition for sustainable weight loss.