# Surfaces in Space vs Dithra

The clearest difference is update cadence: Dithra at daily against Surfaces in Space's every 2 months. Surfaces in Space's advantage is iOS requirement (18.4 vs 26.0). 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.

Surfaces in Space ships an update every 2 months, Dithra daily. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Surfaces in Space | Dithra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surfaces-in-space/id6757165264/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 87 MB | 10 MB |
| Requires iOS | **18.4** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Colin Ford](https://appshunter.io/developer/1864865082) | [Leo Kuroshita](https://appshunter.io/developer/1878595280) |

## What reviewers say

### Surfaces in Space

[App page](https://appshunter.io/ios/app/surfaces-in-space/id6757165264)

Explore and interact with a variety of 3D mathematical surfaces. Visualize complex shapes, customize their appearance, and even import your own 3D models. Offers intuitive touch controls for easy navigation and rendering.

**Highlights:** 3D mathematical surface visualization, Interactive touch controls (rotate, zoom, pan), Customizable surface appearance (fill, primitives), Import .stl and .obj files, Adjustable tessellation detail, Customizable backgrounds and lighting, Save 10-bit snapshots

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

**In-app purchases:** none


### Dithra

[App page](https://appshunter.io/ios/app/dithra/id6759439454)

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

**In-app purchases:** none


## Frequently asked questions

### Is Surfaces in Space free?

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

### Is Dithra free?

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

### Do Surfaces in Space or Dithra have ads?

Neither Surfaces in Space nor Dithra shows ads.

### Which is updated more often, Surfaces in Space or Dithra?

Surfaces in Space ships an update every 2 months, and Dithra daily. Most recently, Surfaces in Space was updated on October 12, 2026 and Dithra on October 6, 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.*