# Intermittent Fasting vs Fasty

Intermittent Fasting and Fasty 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. Intermittent Fasting sells 3 in-app purchases, starting at $1.99 per 7 days and Fasty sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Intermittent Fasting | Fasty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 68 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sylvain Fertons](https://appshunter.io/developer/1851147694) | [长贵 周](https://appshunter.io/developer/6779968395) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-biwo/id6771495054)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biwo Pro Weekly | $1.99 | per 7 days |
| Biwo Pro Monthly | $4.99 | per month |
| Biwo Pro Yearly | $49.99 | per year |


### Fasty

[App page](https://appshunter.io/ios/app/fasty-if-fasting-timer-app/id6779994881)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasty Plus (Weekly) | $1.99 | per 7 days |
| Fasty Plus (Yearly) | $19.99 | per year |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is Fasty free?

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

### Do Intermittent Fasting or Fasty have ads?

Neither Intermittent Fasting nor Fasty shows ads.

### Which is updated more often, Intermittent Fasting or Fasty?

Intermittent Fasting ships an update every 3 days, and Fasty every 3 days. Most recently, Intermittent Fasting was updated on October 31, 2026 and Fasty on October 31, 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.*