# QrCode School Guardian vs QR Code Inspector

The clearest difference is iOS requirement: QR Code Inspector at 13.0 against QrCode School Guardian's 16.6. On price, update cadence, 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.

QrCode School Guardian ships an update every 3 months, QR Code Inspector every 6 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | QrCode School Guardian | QR Code Inspector |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Size | 76 MB | 20 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [SCHOOL GUARDIAN SOFTWARE LTDA](https://appshunter.io/developer/1514850972) | [SSI](https://appshunter.io/developer/1788786420) |

## What reviewers say

### QrCode School Guardian

[App page](https://appshunter.io/ios/app/qrcode-school-guardian/id1474849699)

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

**In-app purchases:** none


### QR Code Inspector

[App page](https://appshunter.io/ios/app/qr-code-inspector/id6740181697)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QrCode School Guardian free?

QrCode School Guardian is free to download, with no in-app purchases.

### Is QR Code Inspector free?

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

### Do QrCode School Guardian or QR Code Inspector have ads?

Neither QrCode School Guardian nor QR Code Inspector shows ads.

### Which is updated more often, QrCode School Guardian or QR Code Inspector?

QrCode School Guardian ships an update every 3 months, and QR Code Inspector every 6 weeks. Most recently, QrCode School Guardian was updated on October 5, 2026 and QR Code Inspector 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.*