Zero: Fasting & Food Tracker

Zero: Fasting & Food Tracker

By Zero Longevity Science, Inc.

Score: 4.8213
4.8213
From 445,270 Ratings

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 is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider before making any changes to your diet, fasting routine, or health regimen. 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

Screenshots

Reviews

  • Very useful and fun to use

    4
    By bitbrains
    Nice UI and very useful. Only complaint is the notifications in the app are all off but the app keeps spamming me with notifications. Had to disable it in system settings.
  • Not worth it

    2
    By Chascona$
    There assessment of my macros is inaccurate most of the time. Make suggestions on my meals which they have no business commenting on.
  • I love this app

    5
    By JanythD
    I have had to much success using this app so far. The flames when peak fat burn is happening are exceptionally great motivation to KEEP GOING. I trying have been enjoying tracking my meals and water intake. Planning to purchase the subscription once my month trial runs out. Love it!
  • New user with difficulty

    2
    By User-6-26
    I find it not totally easy to enter data. For example I entered data for two days and it was not logged. The help function is not very easy to find. Editing an incorrect fast maybe possible, but not obvious. I assume the last meal and first meal would log the start and end of my fast. I paid. There appears that one can’t edit or even display my info on a PC. I am probably too old school. I don’t use my smart phone and devices as my only device nor do I trust them for privacy. I am maybe too critical. But, right now I can’t give a higher rating. The nutrition files are excellent. Software not so much.
  • Sloooow app launch

    3
    By foosball_p
    This used to be my favorite fasting app but lately it’s become unusable because the app takes so damn long to open up an I see the splash screen forever before it actually shows app data.
  • Not worth it.

    1
    By Alirexxxa
    Terrible app. Gimmick. Not even a free trial is worth having this app.
  • Easy to Use, Aggressive Salesmanship

    3
    By Roadrunz
    I was nearly 2.5 days into my first fast, and during that time the app was a joy to use. However, the application wouldn’t let me do anything other than sign up for a free trial for their paid subscription (the mag screen couldn’t be dismissed). I don’t want or need the subscriber features, and couldn’t do anything else in the app, so I uninstalled it.
  • Complete Garbage

    1
    By Grazsoo
    Couldn’t even make it past the 3rd screen to try and sign it without it crashing every time. Junk.
  • Forced upgrade suspicious!

    1
    By Badappyyyy
    I have a paid for annual subscription, being forced to upgrade is suspicious and makes believe there is nefarious intentions by the developers. Highly don’t recommend!
  • Fitness

    5
    By Big papa pump 👍
    Been very helpful and keeping track of whatever you need to fast

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