# Pixel Wind Tunnel vs Navier Stokes Explained

The clearest difference is ads: Pixel Wind Tunnel at none against Navier Stokes Explained's shown. Pixel Wind Tunnel also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price and in-app purchases 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 | Pixel Wind Tunnel | Navier Stokes Explained |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Size | 16 MB | 86 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Kijima](https://appshunter.io/developer/1326808571) | [King Of The Hour, LLC](https://appshunter.io/developer/6810800636) |

## What reviewers say

### Pixel Wind Tunnel

[App page](https://appshunter.io/ios/app/pixel-wind-tunnel/id6760957754)

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

**In-app purchases:** none


### Navier Stokes Explained

[App page](https://appshunter.io/ios/app/navier-stokes-explained/id6814265444)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Wind Tunnel free?

Pixel Wind Tunnel is free to download, with no in-app purchases.

### Is Navier Stokes Explained free?

Navier Stokes Explained is free to download, with no in-app purchases.

### Do Pixel Wind Tunnel or Navier Stokes Explained have ads?

Navier Stokes Explained shows ads; Pixel Wind Tunnel does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*