# DuLink vs QR Coder & Barcode Scanner +

The clearest difference is update cadence: QR Coder & Barcode Scanner + at every 4 days against DuLink's fortnightly. QR Coder & Barcode Scanner + also leads on device support (4 vs 2). DuLink's advantage is iOS requirement (13.0 vs 17.0). 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.

DuLink ships an update fortnightly, QR Coder & Barcode Scanner + every 4 days. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | DuLink | QR Coder & Barcode Scanner + |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 61 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Dunext Technology Suzhou Co., Ltd.](https://appshunter.io/developer/1891965117) | [Constellation Ltd](https://appshunter.io/developer/1713567202) |

## What reviewers say

### DuLink

[App page](https://appshunter.io/ios/app/dulink/id6739234591)

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

**In-app purchases:** none


### QR Coder & Barcode Scanner +

[App page](https://appshunter.io/ios/app/qr-coder-and-barcode-scanner-plus/id6758024337)

**In-app purchases:** none


## Frequently asked questions

### Is DuLink free?

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

### Is QR Coder & Barcode Scanner + free?

QR Coder & Barcode Scanner + is free to download, with no in-app purchases.

### Do DuLink or QR Coder & Barcode Scanner + have ads?

Neither DuLink nor QR Coder & Barcode Scanner + shows ads.

### Which is updated more often, DuLink or QR Coder & Barcode Scanner +?

DuLink ships an update fortnightly, and QR Coder & Barcode Scanner + every 4 days. Most recently, DuLink was updated on September 10, 2026 and QR Coder & Barcode Scanner + on September 8, 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.*