# Zero vs Fasting Tracker 16

The clearest difference is rating: Zero at 4.8 against Fasting Tracker 16's 4.3. Zero also leads on ratings volume (445K vs 6) and update cadence (every 2 weeks vs monthly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Zero sells 8 in-app purchases, starting at $9.99 per month and Fasting Tracker 16 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Zero holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Zero has 445K ratings behind it against 6, so its average is the more settled of the two.

Zero ships an update every 2 weeks, Fasting Tracker 16 monthly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Zero | Fasting Tracker 16 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (445K ratings)](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/fasting-tracker-168/id6478506000/reviews) |
| Number of ratings | **445K** | 6 |
| Positive reviews | 32.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#121** | — |
| Size | 188 MB | 21 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Zero Longevity Science, Inc.](https://appshunter.io/developer/1397458636) | [Taras Chernyshenko](https://appshunter.io/developer/1308198759) |

## What reviewers say

### Zero

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

**Currently charting:** #121 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


### Fasting Tracker 16

[App page](https://appshunter.io/ios/app/fasting-tracker-168/id6478506000)

This app helps you track intermittent fasting periods and achieve health goals. It offers an intuitive interface, supports various fasting methods, and provides motivational support for your wellness journey.

**Highlights:** Intuitive fasting period tracking, Supports multiple fasting methods (16/8, 5:2), Customizable fasting experience, Motivational support and reminders, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Momentum | $4.99 | per month |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Transformation | $24.99 | per year |


## Frequently asked questions

### Is Zero free?

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

### Is Fasting Tracker 16 free?

Fasting Tracker 16 is free to download, with in-app purchases available.

### Which has better reviews, Zero or Fasting Tracker 16?

Zero is rated higher. Zero averages 4.8 out of 5 from 445K ratings, while Fasting Tracker 16 averages 4.3 from 6 ratings.

### Do Zero or Fasting Tracker 16 have ads?

Neither Zero nor Fasting Tracker 16 shows ads.

### Which is updated more often, Zero or Fasting Tracker 16?

Zero ships an update every 2 weeks, and Fasting Tracker 16 monthly. Most recently, Zero was updated on November 12, 2026 and Fasting Tracker 16 on November 8, 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.*