# Zero vs Intermittent Fasting

The clearest difference is ratings volume: Zero at 445K against Intermittent Fasting's 1K. Zero also leads on chart position (#124 vs unranked). Intermittent Fasting's advantage is review sentiment (50% vs 32%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Zero sells 8 in-app purchases, starting at $9.99 per month and Intermittent Fasting sells 10 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Zero against 4.8 for Intermittent Fasting. That said, the two scores are not equally well evidenced: Zero has 445K ratings behind it against 1K, so its average is the more settled of the two. Written reviews are what separate them: 32% of Zero's written reviews are positive against 50% of Intermittent Fasting's.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on November 7, 2026.

## The numbers

| Metric | Zero | Intermittent Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (445K ratings)](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542/reviews)** | [4.8 (1K ratings)](https://appshunter.io/ios/app/intermittent-fasting-fastify/id1638123672/reviews) |
| Number of ratings | **445K** | 1K |
| Positive reviews | 32.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Freemium | Freemium |
| Best chart rank | **#124** | — |
| Size | 188 MB | 54 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Zero Longevity Science, Inc.](https://appshunter.io/developer/1397458636) | [AirShape](https://appshunter.io/developer/1638120760) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542)

**Currently charting:** #124 Top Grossing · Health & Fitness (US App Store)

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

**Highlights:** Intermittent fasting timers and streaks, Photo-based meal logging with macro analysis, Personalized daily protein targets, Water intake tracking, Habit tracking (movement, sleep, mood), Progress visualization and trend analysis, Expert insights on fasting and nutrition

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zero Plus Subscription | $9.99 | per month |
| Zero Plus Subscription | $9.99 | per month |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $89.99 | per year |
| Zero Plus Subscription | $89.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 📊 Helpful tracking and data
- 💡 Informative learning resources
- 🔍 Detailed fasting information
- 🤝 Sense of community

**What reviewers complain about**

- 💰 Expensive premium subscription
- 🔒 Forced account creation
- 🙄 Intrusive ads and upsells
- 🤔 Inconsistent or confusing UI changes
- 🐛 Syncing and login issues

**Reported bugs**

- Password reset problems
- Inaccurate fasting time tracking
- Inability to exit trial without subscribing

**Requested features**

- Custom fasting periods longer than 24 hours
- Ability to edit fasting type and duration
- Integration with more health/fitness apps
- Water intake tracking
- Personalized fasting recommendations


### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-fastify/id1638123672)

Track your eating schedule, receive guidance, and enhance your daily fasting experience. Achieve your weight goals, improve health, and increase energy within a supportive community.

**Highlights:** Fasting schedule tracking, Personalized fasting plans, Health and energy boost tips, Weight loss guidance, Fasting community support, Beginner and experienced plans

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Fasting Subscription | $6.99 | per month |
| Monthly Fasting Subscription | $10.49 | per month |
| Monthly Fasting Subscription | $12.49 | per month |
| Intermittent Fasting Timer | $12.99 | per 3 months |
| Quarterly Fasting Subscription | $16.99 | per 3 months |
| The Fasting | $19.99 | per 3 months |
| App Intermittent Fasting | $29.99 | per year |
| Annually Fasting Subscription | $39.99 | per year |
| Annually Subscription | $59.99 | per year |

**What reviewers like**

- 👍 Great app design
- 🚀 Simple and easy to use
- 💡 Helpful for weight loss and fasting
- 🚀 Tracks fasting progress well

**What reviewers complain about**

- 🐛 App freezes on goals page
- 🐛 Help link crashes the app
- 🐛 Incomplete information display
- 🐛 UI issues with screen fitting
- 🐛 Inability to edit fasting logs

**Reported bugs**

- App freezes on goals page
- Help link crashes the app
- Incomplete information display
- UI issues with screen fitting
- Inability to edit fasting logs

**Requested features**

- Allow changing app icon color
- Add more diet and recipe tips
- Implement dark mode option
- Provide more detailed statistics


## Frequently asked questions

### Is Zero free?

Zero is free to download, with in-app purchases available.

### Is Intermittent Fasting free?

Intermittent Fasting is free to download, with in-app purchases available.

### Which has better reviews, Zero or Intermittent Fasting?

Zero is rated higher. Zero averages 4.8 out of 5 from 445K ratings, while Intermittent Fasting averages 4.8 from 1K ratings.

### Do Zero or Intermittent Fasting have ads?

Neither Zero nor Intermittent Fasting shows ads.

### Which is updated more often, Zero or Intermittent Fasting?

Zero ships an update every 2 weeks, and Intermittent Fasting every 2 weeks. Most recently, Zero was updated on November 7, 2026 and Intermittent Fasting on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*