# Intermittent Fasting vs ZenithFast

The clearest difference is ads: Intermittent Fasting at none against ZenithFast's shown. ZenithFast's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18). On price and in-app purchases there is nothing between them.

Both are free to download. Intermittent Fasting sells 3 in-app purchases, starting at $4.99 per month and ZenithFast sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Intermittent Fasting | ZenithFast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 8 MB | 56 MB |
| Requires iOS | 18 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Karol Jaworski](https://appshunter.io/developer/1799974477) | [Lunar Pixel](https://appshunter.io/developer/1894289905) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-window/id6760733395)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Window Pro Monthly | $4.99 | per month |
| Window Pro Intro Year | $39.99 | per year |
| Window Pro Yearly | $39.99 | per year |


### ZenithFast

[App page](https://appshunter.io/ios/app/zenithfast-fasting-tracker/id6762472390)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is ZenithFast free?

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

### Do Intermittent Fasting or ZenithFast have ads?

ZenithFast shows ads; Intermittent Fasting does not.

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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.*