# xHours vs WaterFast

xHours and WaterFast are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. xHours sells 2 in-app purchases, starting at $2.99 per month and WaterFast sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

xHours ships an update every 9 days, WaterFast weekly. The most recent releases landed on October 24, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | xHours | WaterFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | — | Freemium |
| Size | 9 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | +4 |
| Developer | [Nicola Radaelli](https://appshunter.io/developer/1895174746) | [LUIS ORLANDO LAZO GONZALEZ](https://appshunter.io/developer/1896012382) |

## 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 |


### WaterFast

[App page](https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484)

This app provides a synchronized intermittent fasting timer designed for seamless use across your iPhone and Apple Watch. It offers detailed insights into fasting zones and hydration tracking, with a focus on privacy and a user-friendly experience.

**Highlights:** Synchronized iPhone and Apple Watch timer, Fasting zone insights, Hydration tracking, Multiple fasting plans, Streak calendar, Data export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WaterFast PRO Monthly | $2.99 | per month |
| WaterFast PRO Yearly | $9.99 | per year |
| WaterFast PRO Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is xHours free?

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

### Is WaterFast free?

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

### Do xHours or WaterFast have ads?

Neither xHours nor WaterFast shows ads.

### Which is updated more often, xHours or WaterFast?

xHours ships an update every 9 days, and WaterFast weekly. Most recently, xHours was updated on October 24, 2026 and WaterFast on November 5, 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.*