# Cần Giờ DWSS vs QR Code

The clearest difference is in-app purchases: Cần Giờ DWSS at none against QR Code's 2. Cần Giờ DWSS also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. QR Code sells 2 in-app purchases, starting at $4.99 per 7 days. Cần Giờ DWSS asks for nothing beyond the download.

Cần Giờ DWSS ships an update every 3 days, QR Code every 3 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Cần Giờ DWSS | QR Code |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 40 MB | 25 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SAIGON WATER CORPORATION](https://appshunter.io/developer/1550692267) | [Pham Dinh Sy](https://appshunter.io/developer/1023242271) |

## What reviewers say

### Cần Giờ DWSS

[App page](https://appshunter.io/ios/app/can-gio-dwss/id6740068426)

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

**In-app purchases:** none


### QR Code

[App page](https://appshunter.io/ios/app/qr-code-scan-and-create-fast/id6757103977)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is Cần Giờ DWSS free?

Cần Giờ DWSS is free to download, with no in-app purchases.

### Is QR Code free?

QR Code is free to download, with in-app purchases available.

### Do Cần Giờ DWSS or QR Code have ads?

QR Code shows ads; Cần Giờ DWSS does not.

### Which is updated more often, Cần Giờ DWSS or QR Code?

Cần Giờ DWSS ships an update every 3 days, and QR Code every 3 weeks. Most recently, Cần Giờ DWSS was updated on October 6, 2026 and QR Code on October 2, 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.*