# Proton MDIS vs Gerber Viewer

The clearest difference is in-app purchases: Proton MDIS at none against Gerber Viewer's 3. Gerber Viewer's advantage is iOS requirement (12.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. Gerber Viewer sells 3 in-app purchases, starting at $2.99 per 7 days. Proton MDIS asks for nothing beyond the download.

## The numbers

| Metric | Proton MDIS | Gerber Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 38 MB | 49 MB |
| Requires iOS | 17 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proton Products (Chengdu) Ltd.](https://appshunter.io/developer/1223858548) | [CODIGITAL SOLUTIONS](https://appshunter.io/developer/1829802387) |

## What reviewers say

### Proton MDIS

[App page](https://appshunter.io/ios/app/proton-mdis/id1485695306)

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

**In-app purchases:** none


### Gerber Viewer

[App page](https://appshunter.io/ios/app/gerber-viewer-open-pcb/id6791391835)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $2.99 | per 7 days |
| Pro Access | $4.99 | per month |
| Pro Access | $19.99 | per year |


## Frequently asked questions

### Is Proton MDIS free?

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

### Is Gerber Viewer free?

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

### Do Proton MDIS or Gerber Viewer have ads?

Neither Proton MDIS nor Gerber Viewer 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.*