# Roughness vs Materials Lab

The clearest difference is in-app purchases: Roughness at none against Materials Lab's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Materials Lab sells 1 one-off in-app purchase. Roughness asks for nothing beyond the download.

## The numbers

| Metric | Roughness | Materials Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Size | 26 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Carl Zeiss AG](https://appshunter.io/developer/488066215) | [碧珍 刘](https://appshunter.io/developer/372781020) |

## What reviewers say

### Roughness

[App page](https://appshunter.io/ios/app/roughness/id1356085703)

**In-app purchases:** none


### Materials Lab

[App page](https://appshunter.io/ios/app/materials-lab/id6769240286)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Materials Lab Pro | $9.99 | one-time |


## Frequently asked questions

### Is Roughness free?

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

### Is Materials Lab free?

Materials Lab is free to download, with in-app purchases available.

### Do Roughness or Materials Lab have ads?

Neither Roughness nor Materials Lab shows ads.

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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.*