# FastFast vs Water Fasting

The clearest difference is in-app purchases: FastFast at none against Water Fasting's 2. Water Fasting's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Water Fasting sells 2 in-app purchases, starting at $9.99 per month. FastFast asks for nothing beyond the download.

## The numbers

| Metric | FastFast | Water Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/water-fasting-tracker-and-timer/id6767459809/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 13 MB | 19 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Parsa Nasirimehr](https://appshunter.io/developer/1756768895) | [SUKRU DEMIR](https://appshunter.io/developer/1856005733) |

## What reviewers say

### FastFast

[App page](https://appshunter.io/ios/app/fastfast-fasting-tracker/id6767055447)

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

**In-app purchases:** none


### Water Fasting

[App page](https://appshunter.io/ios/app/water-fasting-tracker-and-timer/id6767459809)

Track your fasting journey with a visually engaging water orb timer. Understand your body's stages, log hydration, and gain personalized wellness insights. Offers science-backed information and a premium minimalist design.

**Highlights:** Living water orb timer with gyroscope physics, Six science-backed fasting stages, Hydration and wellness logging, Personalized wellness insights, Premium minimalist design, Data export

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Fasting Pro | $9.99 | per month |
| Water Fasting Pro | $59.99 | per year |


## Frequently asked questions

### Is FastFast free?

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

### Is Water Fasting free?

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

### Do FastFast or Water Fasting have ads?

Neither FastFast nor Water Fasting shows ads.

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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.*