# QR Code SPAC vs MAD Systems

The clearest difference is update cadence: MAD Systems at every 2 weeks against QR Code SPAC's every 8 months. MAD Systems also leads on iOS requirement (12.0 vs 15.6). 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.

QR Code SPAC ships an update every 8 months, MAD Systems every 2 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | QR Code SPAC | MAD Systems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Size | 44 MB | 41 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SDProget Industrial Software](https://appshunter.io/developer/363365769) | [Levon Gharibyan](https://appshunter.io/developer/1449597144) |

## What reviewers say

### QR Code SPAC

[App page](https://appshunter.io/ios/app/qr-code-spac/id1469044209)

**Features:** macOS Compatibility

**In-app purchases:** none


### MAD Systems

[App page](https://appshunter.io/ios/app/mad-systems/id1517310588)

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Code SPAC free?

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

### Is MAD Systems free?

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

### Do QR Code SPAC or MAD Systems have ads?

Neither QR Code SPAC nor MAD Systems shows ads.

### Which is updated more often, QR Code SPAC or MAD Systems?

QR Code SPAC ships an update every 8 months, and MAD Systems every 2 weeks. Most recently, QR Code SPAC was updated on October 5, 2026 and MAD Systems on October 7, 2026.

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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.*