# Physics Playgrounds vs CentoZeri

The clearest difference is in-app purchases: Physics Playgrounds at none against CentoZeri's 1. Physics Playgrounds also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. CentoZeri sells 1 one-off in-app purchase. Physics Playgrounds asks for nothing beyond the download.

## The numbers

| Metric | Physics Playgrounds | CentoZeri |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 37 MB | 21 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [KheniTech](https://appshunter.io/developer/1580419338) | [Francesco Sarpellon](https://appshunter.io/developer/1786820225) |

## What reviewers say

### Physics Playgrounds

[App page](https://appshunter.io/ios/app/physics-playgrounds/id6761057955)

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

**In-app purchases:** none


### CentoZeri

[App page](https://appshunter.io/ios/app/centozeri-numeri-giganti/id6791565354)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beyond the Googol | $4.99 | one-time |


## Frequently asked questions

### Is Physics Playgrounds free?

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

### Is CentoZeri free?

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

### Do Physics Playgrounds or CentoZeri have ads?

Neither Physics Playgrounds nor CentoZeri 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.*