# Zero vs Fastime

The clearest difference is in-app purchases: Fastime at none against Zero's 10. Fastime also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). Zero's advantage is chart position (#109 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. Zero sells 7 in-app purchases, starting at $9.99 per month. Fastime asks for nothing beyond the download.

Zero ships an update every 2 weeks, Fastime every 2 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Zero | Fastime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (445K ratings)](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542/reviews)** | — |
| Number of ratings | **445K** | — |
| Positive reviews | 32.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Freemium | — |
| Best chart rank | **#109** | — |
| Size | 195 MB | 59 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Zero Longevity Science, Inc.](https://appshunter.io/developer/1397458636) | [Khaled Almelhem](https://appshunter.io/developer/6775435845) |

## What reviewers say

### Zero

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

**Currently charting:** #109 Top Grossing · Health & Fitness (US App Store)

This app tracks intermittent fasting and nutrition to help users achieve real 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, Smart meal logging with photo recognition, Personalized daily protein target tracking, Integrated fasting and protein tracking, Water and habit tracking, Science-based insights on fasting and nutrition

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

**In-app purchases (7)**

| 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 |

**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


### Fastime

[App page](https://appshunter.io/ios/app/fastime-fasting-tracker/id6779664095)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zero free?

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

### Is Fastime free?

Fastime is free to download, with no in-app purchases.

### Do Zero or Fastime have ads?

Neither Zero nor Fastime shows ads.

### Which is updated more often, Zero or Fastime?

Zero ships an update every 2 weeks, and Fastime every 2 days. Most recently, Zero was updated on November 3, 2026 and Fastime on October 24, 2026.

---

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