# QR Generator vs Quantum Shield

The clearest difference is in-app purchases: QR Generator at none against Quantum Shield's 4. Quantum Shield's advantage is ads (none vs shown) and update cadence (every 4 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Quantum Shield sells 4 in-app purchases, starting at $3.99 per month. QR Generator asks for nothing beyond the download.

QR Generator ships an update every 3 weeks, Quantum Shield every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | QR Generator | Quantum Shield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 21 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [金桃 董](https://appshunter.io/developer/1668609192) | [Quantum Secure Labs SL](https://appshunter.io/developer/1895611135) |

## What reviewers say

### QR Generator

[App page](https://appshunter.io/ios/app/qr-generator-quick-scanner/id6446250117)

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

**In-app purchases:** none


### Quantum Shield

[App page](https://appshunter.io/ios/app/quantum-shield-anti-scam/id6764045374)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Mensual | $3.99 | per month |
| Shield Mensual | $8.99 | per month |
| Plus Anual | $25.00 | per year |
| Shield Anual | $69.00 | per year |


## Frequently asked questions

### Is QR Generator free?

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

### Is Quantum Shield free?

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

### Do QR Generator or Quantum Shield have ads?

QR Generator shows ads; Quantum Shield does not.

### Which is updated more often, QR Generator or Quantum Shield?

QR Generator ships an update every 3 weeks, and Quantum Shield every 4 days. Most recently, QR Generator was updated on October 24, 2026 and Quantum Shield on October 24, 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.*