# Shock Diamonds vs Pixel Wind Tunnel

The clearest difference is ads: Shock Diamonds at none against Pixel Wind Tunnel's shown. Shock Diamonds also leads on update cadence (every 4 days vs every 7 months). Pixel Wind Tunnel's advantage is device support (3 vs 1) and iOS requirement (15.0 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.

Shock Diamonds ships an update every 4 days, Pixel Wind Tunnel every 7 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Shock Diamonds | Pixel Wind Tunnel |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 7 months |
| Monetization | — | Ad-supported |
| Size | 15 MB | 21 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Gilevich](https://appshunter.io/developer/1541198784) | [Hiroki Kijima](https://appshunter.io/developer/1326808571) |

## What reviewers say

### Shock Diamonds

[App page](https://appshunter.io/ios/app/shock-diamonds/id6749603019)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pixel Wind Tunnel

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

Visualize real fluid dynamics on your device by drawing shapes and simulating their interaction with air or liquid. Explore flow patterns, measure aerodynamic coefficients, and understand physics with real calculations, not approximations.

**Highlights:** Draw custom shapes for simulation, Real-time 2D fluid dynamics calculations, Multiple visualization modes (velocity, pressure, vorticity, streamlines), Calculate aerodynamic coefficients (drag, lift), Place probes to track fluid properties, Adjust simulation parameters (inlet velocity, viscosity), Compare different shape designs

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

**In-app purchases:** none


## Frequently asked questions

### Is Shock Diamonds free?

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

### Is Pixel Wind Tunnel free?

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

### Do Shock Diamonds or Pixel Wind Tunnel have ads?

Pixel Wind Tunnel shows ads; Shock Diamonds does not.

### Which is updated more often, Shock Diamonds or Pixel Wind Tunnel?

Shock Diamonds ships an update every 4 days, and Pixel Wind Tunnel every 7 months. Most recently, Shock Diamonds was updated on October 12, 2026 and Pixel Wind Tunnel on October 25, 2026.

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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.*