# Space Interface vs Mosaic Designer for LEGO

The clearest difference is price: Space Interface at Free against Mosaic Designer for LEGO's $2.99. Space Interface also leads on iOS requirement (12.0 vs 17.0). Mosaic Designer for LEGO's advantage is update cadence (every 4 months vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

Space Interface is free to download; Mosaic Designer for LEGO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Space Interface ships an update every 8 months, Mosaic Designer for LEGO every 4 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Space Interface | Mosaic Designer for LEGO |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[3.4 (7 ratings)](https://appshunter.io/ios/app/mosaic-designer-for-lego/id1481012477/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | — | Paid |
| Size | 145 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haichao Zhang](https://appshunter.io/developer/1294373918) | [iStuff](https://appshunter.io/developer/369606386) |

## What reviewers say

### Space Interface

[App page](https://appshunter.io/ios/app/space-interface/id1294373919)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mosaic Designer for LEGO

[App page](https://appshunter.io/ios/app/mosaic-designer-for-lego/id1481012477)

Create custom LEGO mosaics from your photos. Select an image, choose your color palette, and specify the mosaic size. The app then generates the mosaic design and a list of necessary LEGO bricks.

**Highlights:** Photo to mosaic conversion, Customizable color palettes, Adjustable mosaic size, Generates parts list, LEGO brick design

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

**In-app purchases:** none


## Frequently asked questions

### Is Space Interface free?

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

### Is Mosaic Designer for LEGO free?

Mosaic Designer for LEGO costs $2.99, with no in-app purchases.

### Do Space Interface or Mosaic Designer for LEGO have ads?

Neither Space Interface nor Mosaic Designer for LEGO shows ads.

### Which is updated more often, Space Interface or Mosaic Designer for LEGO?

Space Interface ships an update every 8 months, and Mosaic Designer for LEGO every 4 months. Most recently, Space Interface was updated on October 26, 2026 and Mosaic Designer for LEGO 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.*