# Roughness vs CloudLabs Geometric optics

The clearest difference is iOS requirement: CloudLabs Geometric optics at 9.0 against Roughness's 15.0. 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.

## The numbers

| Metric | Roughness | CloudLabs Geometric optics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Size | 26 MB | 83 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Carl Zeiss AG](https://appshunter.io/developer/488066215) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### Roughness

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

**In-app purchases:** none


### CloudLabs Geometric optics

[App page](https://appshunter.io/ios/app/cloudlabs-geometric-optics/id1636352420)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Roughness free?

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

### Is CloudLabs Geometric optics free?

CloudLabs Geometric optics is free to download, with no in-app purchases.

### Do Roughness or CloudLabs Geometric optics have ads?

Neither Roughness nor CloudLabs Geometric optics 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.*