# QB Code vs HST Viewer 2

The clearest difference is update cadence: HST Viewer 2 at every 2 months against QB Code's every 9 months. HST Viewer 2 also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QB Code ships an update every 9 months, HST Viewer 2 every 2 months. The most recent releases landed on September 29, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | QB Code | HST Viewer 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Size | 36 MB | 412 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [zhihao zheng](https://appshunter.io/developer/1713124938) | [HUANG SHENG TECHNOLOGY CO., LTD](https://appshunter.io/developer/1699132846) |

## What reviewers say

### QB Code

[App page](https://appshunter.io/ios/app/qb-code/id6470183234)

**In-app purchases:** none


### HST Viewer 2

[App page](https://appshunter.io/ios/app/hst-viewer-2/id6752448031)

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

**In-app purchases:** none


## Frequently asked questions

### Is QB Code free?

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

### Is HST Viewer 2 free?

HST Viewer 2 is free to download, with no in-app purchases.

### Which is updated more often, QB Code or HST Viewer 2?

QB Code ships an update every 9 months, and HST Viewer 2 every 2 months. Most recently, QB Code was updated on September 29, 2026 and HST Viewer 2 on September 26, 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.*