# PythagorasTree vs Four Dimensional Space

The clearest difference is update cadence: Four Dimensional Space at every 6 months against PythagorasTree's every 21 months. PythagorasTree's advantage is iOS requirement (13.0 vs 26.2). 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.

PythagorasTree ships an update every 21 months, Four Dimensional Space every 6 months. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PythagorasTree | Four Dimensional Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pythagorastree/id421785224/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 3 MB | 6 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eric Stroh](https://appshunter.io/developer/388351590) | [Toru Kawaguchi](https://appshunter.io/developer/1063198642) |

## What reviewers say

### PythagorasTree

[App page](https://appshunter.io/ios/app/pythagorastree/id421785224)

Explore the visual beauty of mathematical concepts with this app. It generates fractal art based on the Pythagorean theorem, allowing you to customize angles and colors. Watch the intricate patterns grow and shrink to understand the recursive process.

**Highlights:** Recursive fractal generation, Adjustable triangle angles, Customizable tree colors, Interactive growth and shrink animation, Visualizes Pythagorean theorem

**Features:** macOS Compatibility

**In-app purchases:** none


### Four Dimensional Space

[App page](https://appshunter.io/ios/app/four-dimensional-space/id6762447300)

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

**In-app purchases:** none


## Frequently asked questions

### Is PythagorasTree free?

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

### Is Four Dimensional Space free?

Four Dimensional Space is free to download, with no in-app purchases.

### Do PythagorasTree or Four Dimensional Space have ads?

Neither PythagorasTree nor Four Dimensional Space shows ads.

### Which is updated more often, PythagorasTree or Four Dimensional Space?

PythagorasTree ships an update every 21 months, and Four Dimensional Space every 6 months. Most recently, PythagorasTree was updated on October 1, 2026 and Four Dimensional Space on October 15, 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.*