# xHours vs The Fast

The clearest difference is in-app purchases: The Fast at none against xHours's 2. The Fast also leads on update cadence (daily vs every 9 days) and iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. xHours sells 2 in-app purchases, starting at $2.99 per month. The Fast asks for nothing beyond the download.

xHours ships an update every 9 days, The Fast daily. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | xHours | The Fast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Size | 9 MB | 31 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nicola Radaelli](https://appshunter.io/developer/1895174746) | [Prime Adventure LLC](https://appshunter.io/developer/6803535656) |

## What reviewers say

### xHours

[App page](https://appshunter.io/ios/app/xhours-intermittent-fasting/id6763129519)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| xHours Premium Monthly | $2.99 | per month |
| xHours Premium Yearly | $19.99 | per year |


### The Fast

[App page](https://appshunter.io/ios/app/the-fast-fasting-timer/id6813492448)

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

**In-app purchases:** none


## Frequently asked questions

### Is xHours free?

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

### Is The Fast free?

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

### Do xHours or The Fast have ads?

Neither xHours nor The Fast shows ads.

### Which is updated more often, xHours or The Fast?

xHours ships an update every 9 days, and The Fast daily. Most recently, xHours was updated on October 9, 2026 and The Fast on October 11, 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.*