# Mandel Draw vs Pixel Wind Tunnel

The clearest difference is review sentiment: Mandel Draw at 53% against Pixel Wind Tunnel's 0%. Mandel Draw also leads on ads (none vs shown) and update cadence (weekly vs every 7 months). Pixel Wind Tunnel's advantage is in-app purchases (none vs 1). On price, device support and iOS requirement there is nothing between them.

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

Mandel Draw ships an update weekly, Pixel Wind Tunnel every 7 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Mandel Draw | Pixel Wind Tunnel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (209 ratings)](https://appshunter.io/ios/app/mandel-draw/id1547068084/reviews)** | — |
| Number of ratings | **209** | — |
| Positive reviews | **53.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 7 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 22 MB | 21 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Mori](https://appshunter.io/developer/1458257715) | [Hiroki Kijima](https://appshunter.io/developer/1326808571) |

## What reviewers say

### Mandel Draw

[App page](https://appshunter.io/ios/app/mandel-draw/id1547068084)

Explore the infinite beauty of fractals with this intuitive drawing app. Generate Mandelbrot and Julia sets with numerous functions and color palettes. Enjoy simple touch controls for navigation and advanced settings for high-resolution output and iCloud syncing.

**Highlights:** Mandelbrot and Julia set generation, 80+ fractal functions, 20+ color palettes, Intuitive touch controls (drag, pinch, tap), High-resolution output, iCloud Sync for favorites and palettes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $1.99 | one-time |


### 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 Mandel Draw free?

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

### Is Pixel Wind Tunnel free?

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

### Do Mandel Draw or Pixel Wind Tunnel have ads?

Pixel Wind Tunnel shows ads; Mandel Draw does not.

### Which is updated more often, Mandel Draw or Pixel Wind Tunnel?

Mandel Draw ships an update weekly, and Pixel Wind Tunnel every 7 months. Most recently, Mandel Draw was updated on October 24, 2026 and Pixel Wind Tunnel on October 22, 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.*