# Pixel Wind Tunnel vs Engine Lab

The clearest difference is in-app purchases: Pixel Wind Tunnel at none against Engine Lab's 1. Pixel Wind Tunnel also leads on iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Engine Lab sells 1 one-off in-app purchase. Pixel Wind Tunnel asks for nothing beyond the download.

## The numbers

| Metric | Pixel Wind Tunnel | Engine Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/engine-lab-simulator-and-sound/id6790748979/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 14 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Kijima](https://appshunter.io/developer/1326808571) | [Jan Sokol](https://appshunter.io/developer/1896490456) |

## 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


### Engine Lab

[App page](https://appshunter.io/ios/app/engine-lab-simulator-and-sound/id6790748979)

Explore engine mechanics with a touch-first simulator. Build, tune, and test custom engines, observing animations and hearing synthesized exhaust sounds. Export your creations as WAV files.

**Highlights:** Touch-first engine simulation, Build and save custom engines, Tune engine parameters, Simulated dyno pulls, Crank and piston animation, Native exhaust synthesis, Export WAV audio

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Engine Lab Pro | $4.99 | one-time |


## Frequently asked questions

### Is Pixel Wind Tunnel free?

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

### Is Engine Lab free?

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

### Do Pixel Wind Tunnel or Engine Lab have ads?

Neither Pixel Wind Tunnel nor Engine Lab 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.*