# QR Studio ‎ vs Cairn Maps

The clearest difference is device support: QR Studio ‎ at 3 against Cairn Maps's 1. QR Studio ‎ also leads on iOS requirement (12.0 vs 18.2). On price, ads and in-app purchases 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 | QR Studio ‎ | Cairn Maps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 34 MB | 15 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Hrishi Suthar](https://appshunter.io/developer/1660005858) | [YMMV](https://appshunter.io/developer/1224453829) |

## What reviewers say

### QR Studio ‎

[App page](https://appshunter.io/ios/app/qr-studio/id6748132757)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cairn Maps

[App page](https://appshunter.io/ios/app/cairn-maps/id6756520443)

**In-app purchases:** none


## Frequently asked questions

### Is QR Studio ‎ free?

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

### Is Cairn Maps free?

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

### Do QR Studio ‎ or Cairn Maps have ads?

Neither QR Studio ‎ nor Cairn Maps 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.*