# GCodeReader CNC vs ScreenTwin

The clearest difference is in-app purchases: GCodeReader CNC at none against ScreenTwin's 3. ScreenTwin's advantage is iOS requirement (15.5 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. ScreenTwin sells 3 in-app purchases, starting at $2.99 per 7 days. GCodeReader CNC asks for nothing beyond the download.

## The numbers

| Metric | GCodeReader CNC | ScreenTwin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 44 MB | 84 MB |
| Requires iOS | 26.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Favionics](https://appshunter.io/developer/495997736) | [Mohammad Imran Mia](https://appshunter.io/developer/6786574678) |

## What reviewers say

### GCodeReader CNC

[App page](https://appshunter.io/ios/app/gcodereader-cnc/id6782029376)

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

**In-app purchases:** none


### ScreenTwin

[App page](https://appshunter.io/ios/app/screentwin-measure-screenshot/id6801403144)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is GCodeReader CNC free?

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

### Is ScreenTwin free?

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

### Do GCodeReader CNC or ScreenTwin have ads?

Neither GCodeReader CNC nor ScreenTwin 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.*