# ZenithFast vs Hollow

The clearest difference is in-app purchases: Hollow at none against ZenithFast's 2. ZenithFast's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. ZenithFast sells 2 in-app purchases, starting at $4.99 per month. Hollow asks for nothing beyond the download.

## The numbers

| Metric | ZenithFast | Hollow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Size | 56 MB | 57 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Lunar Pixel](https://appshunter.io/developer/1894289905) | [Studio Solum](https://appshunter.io/developer/1807647357) |

## What reviewers say

### 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 |


### Hollow

[App page](https://appshunter.io/ios/app/hollow/id6797871670)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenithFast free?

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

### Is Hollow free?

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

### Do ZenithFast or Hollow have ads?

Both ZenithFast and Hollow show 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.*