# physics vs NNN math

The clearest difference is iOS requirement: NNN math at 12.0 against physics's 15.0. On price, ads, in-app purchases and device support 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 | physics | NNN math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | — |
| Size | 31 MB | 38 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ruslan Ilisbekov](https://appshunter.io/developer/1581051885) | [Maksat Batyrkul](https://appshunter.io/developer/1573753696) |

## What reviewers say

### physics

[App page](https://appshunter.io/ios/app/physics-school/id1641054910)

**In-app purchases:** none


### NNN math

[App page](https://appshunter.io/ios/app/nnn-math/id6470450422)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is physics free?

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

### Is NNN math free?

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

### Do physics or NNN math have ads?

Neither physics nor NNN math 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.*