Zero: Fasting & Food Tracker

Name: Zero: Fasting & Food Tracker
Rating: 4.8 (445258 reviews)
Author: Zero Longevity Science, Inc.

By: Zero Longevity Science, Inc.

Protein & Calorie Calculator

Features & Capabilities

Zero is the all-in-one fasting tracker and nutrition app built for real results. It connects fasting, meals, hydration, and daily habits so you can change body composition, not just your eating schedule.

Fasting made simple with timers, streaks, and actionable insights to keep you consistent.
Smart photo meal logging with instant macros and protein composition.
Automatic Protein Score that adapts to your weight and goals for better satiety and muscle retention.
Hydration tracking to power your fasts and support metabolic function.
Habit and activity tracking to reinforce your fasting and fueling routine.
Learn the science and see measurable progress with clear trend views.

Zero Plus offers premium features; a free version is available. Zero is not a medical device; consult a healthcare provider before changing your diet.

User Growth & Download Statistics

App Analytics Data Education

By:

Zero Longevity Science, Inc.

Rating:

4.80

(445,258) 17 ratings

Version:

7.11.0 Last updated: 2026-07-08

Version code:

887920759

Creation date:

2016-12-23

Compatible devices:

Size:

224.64MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-10

Compare stats and ranking:

Ranking

# 932 ▲ 4

Other rankings

#6 in simple keyword 36 ▼ 2#15 in progress keyword 24 ▲ 31#53 in post keyword 19 ▲

Other platforms

Zero - Intermittent Fasting (v4.2.1)

3,967,668 3.81

(61,151)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Zero Longevity Science, Inc.

Apple Apps Store

https://apps.apple.com/us/app/zero-fasting-food-tracker/id1168348542

Website:

http://www.zerolongevity.com

User Reviews

Zero: Fasting & Food Tracker was a long-running fasting tracker used by many for years with visible progress for some users. However, reviews now center on paywalls, login/account access problems, data loss after updates, UI/ reliability issues, and billing concerns, leading many to abandon the app despite its prior usefulness.

Pros

Long-term fasting tracking: Users have been using Zero for years to log fasts and monitor progress.
Has helped users achieve measurable progress, including weight loss.
Some users experienced responsive customer support that fixed issues quickly.
Provided straightforward fasting-tracking features and a history of entries for review.

Cons

Subscriptions and paywall: Free features are restricted or require trials/subscriptions, with sentiment that it is no longer free or affordable.
Login and account access problems: Repeated sign-in failures, glitches after updates, and difficulty accessing accounts.
Data loss and record deletions: Fasts disappearing or being wiped, sometimes after updates or sign-in issues.
Reliability and UI issues after updates: UI changes, bugs in the timer/tracker, and overall reliability concerns.
Billing issues such as auto-charging and unclear renewal charges.

Recent reviews

So very helpful when I use it to track my fasting goals.

by Na*****, 2026-06-29

I have listed my weight as 315 pounds, with a goal of 250… eventually. However it appears to be calculating my program as though I were 142 pounds. I’m not sure how to LOSE weight at 142 to get me to 250 as a LOSS, so I am concerned that it is going to give me a program for a weight GAIN, and not a loss at all. Definitely a very bad bug here! Especially since it wants me to hit 199 g of protein per day which is unreasonably high!

by Sc*****, 2026-06-29

First week using it. Has good tools and tips. I dislike that no matter how good your meals try to be, they always have a tone of not good enough. Only way you get a good job on a meal is if it’s only protein.