# 60Hertz vs PPI

The clearest difference is ads: 60Hertz at none against PPI's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 60Hertz | PPI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Size | 61 MB | 27 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [60Hertz Inc](https://appshunter.io/developer/1529989329) | [SyvaSoft](https://appshunter.io/developer/1664071278) |

## What reviewers say

### 60Hertz

[App page](https://appshunter.io/ios/app/60hertz/id1529989327)

**Features:** macOS Compatibility

**In-app purchases:** none


### PPI

[App page](https://appshunter.io/ios/app/ppi-pt/id6737170339)

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

**In-app purchases:** none


## Frequently asked questions

### Is 60Hertz free?

60Hertz is free to download, with no in-app purchases.

### Is PPI free?

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

### Do 60Hertz or PPI have ads?

PPI shows ads; 60Hertz 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.*