Zero: Fasting & Food Tracker
What is Zero?
Zero is a Health & Fitness app that combines intermittent fasting timers, streaks and weekly trends with meal, protein, hydration and habit tracking. Photo meal logging, a daily Protein Score and water tracking are part of the optional Zero Plus subscription. The listing states Zero is not a medical device and does not provide medical advice.
Pricing. Zero: Fasting & Food Tracker is free to download, with in-app purchases on the App Store.
Good for
- Tracking intermittent fasting alongside meals and protein intake
- Following a daily protein target together with a fasting schedule
- Combining mood, movement and sleep habits with fasting routines
Screenshots
Why this app is in S tier
Zero scores 98 out of 100: rating 96, rating count 98, App Store search rank 99, update recency 100. The four parts are averaged with no weights, and S tier follows from that score within this list. The full explanation, as data.
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 across your entire fasting journey. • Log meals the smart way - Skip the tedious manual meal entry routine. With Zero Plus, snap a photo and get instant macros, protein composition, and clarity on how effectively your meals support your goals. Your first meal logs are on us, so you can try it before you subscribe. • Hit your Protein Score - Zero Plus tracks a 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 cal
Compare in Intermittent Fasting
| Measure | |||
|---|---|---|---|
| Tier | S | S | S |
| Score | 98 / 100 | 98 / 100 | 96 / 100 |
| Rating | 4.8 ★ | 4.8 ★ | 4.7 ★ |
| Ratings | 445K | 246K | 146K |
| Latest ratings · 180d | 1.9 ★ · 20 reviews | 2.9 ★ · 20 reviews | 3.5 ★ · 20 reviews |
| Last update | 16d ago | 7d ago | 48d ago |
| Price | Free + IAP | Free + IAP | Free + IAP |
Alternatives
See all 33 ›
Fastic Weight Loss & FastingFree + IAP · ★ 4.8S
BodyFastFree + IAP · ★ 4.7S
Intermittent Fasting TrackerFree + IAP · ★ 4.9S
Where else it ranks
- Best Food Tracking AppsS tier, #9, score 96
- Best Nutrition Tracking AppsA tier, #11, score 95
- Best Macro Tracking AppsA tier, #19, score 89
- Best Weight Loss AppsA tier, #19, score 87
Questions about Zero
Is Zero free to use?
Zero is free to download and includes fasting timers, streaks, weekly trends, expert articles and challenges. Zero Plus is an optional subscription, and a free trial is available.
What does Zero Plus add?
Zero Plus unlocks photo meal logging, the Protein Score, water tracking, custom fasts and presets, Fat-Burning Mode, the mood journal, daily habit insights, premium articles, Plus-only challenges, and monthly, yearly and correlated charts.
Is Zero a medical app?
The listing states Zero is not a medical device and does not provide medical advice, diagnosis or treatment. It advises consulting a doctor or qualified healthcare provider before changing diet, fasting or health routines.
Is Zero free?
Zero is free to download, with in-app purchases.
What is Zero good for?
Zero is built for tracking intermittent fasting alongside meals and protein intake, following a daily protein target together with a fasting schedule, combining mood, movement and sleep habits with fasting routines. It sits in the intermittent fasting list on AppTierList.
Is Zero worth it?
Zero is S tier, ranked #1 of 34 intermittent fasting apps with a score of 98 out of 100, from a 4.8 App Store rating across 445,303 ratings. That is the top of its list.
How does Zero compare to Fastic Weight Loss & Fasting?
Zero is S tier at 98; Fastic Weight Loss & Fasting is S tier at 98. They score the same. Zero is free to download, with in-app purchases, Fastic Weight Loss & Fasting is free to download, with in-app purchases.
How often is Zero updated?
Zero was updated 16 days ago, which counts in its favour.
All the facts
- List
- Intermittent Fasting
- Tier
- S (Best in class)
- Score
- 98 / 100
- Rank in list
- #1 of 34
- Ranking certainty
- settled
- Price
- Free + IAP
- App Store rating
- 4.8 out of 5
- Number of ratings
- 445,303
- Recent reviews
- 1.9 from 20 in the last 180 days
- Current version
- (16 days ago)
- App Store data read
- App Store category
- Health & Fitness
- Good for
- Tracking intermittent fasting alongside meals and protein intake, Following a daily protein target together with a fasting schedule, Combining mood, movement and sleep habits with fasting routines
- Requires
- iOS 17.0 or later
- Size
- 195 MB
- Age rating
- 17+
- Languages
- 1
- Developer pages
- Website · Support · Privacy policy
- Maker
- unclaimed
- As data
- JSON · why it ranks here
Ranking refreshed · how it is computed