# USThing vs HKUST QR Code

The clearest difference is review sentiment: USThing at 44% against HKUST QR Code's 0%. USThing also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

USThing ships an update every 3 weeks, HKUST QR Code every 2 months. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | USThing | HKUST QR Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/usthing/id965883733/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **44.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 62 MB | 18 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zachary Lo](https://appshunter.io/developer/905197936) | [The Hong Kong University of Science and Technology](https://appshunter.io/developer/332536363) |

## What reviewers say

### USThing

[App page](https://appshunter.io/ios/app/usthing/id965883733)

This campus app consolidates various Hong Kong University of Science and Technology IT services into a single platform. It offers features like facility booking, grade viewing, timetable access, and event information, all accessible with encrypted local storage of credentials.

**Highlights:** Facility booking (Library, FBS), View grades and timetables, Course waitlist positions, Next lesson notifications, TimeMatch for finding free time, Campus info and directory, News and events

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

**In-app purchases:** none


### HKUST QR Code

[App page](https://appshunter.io/ios/app/hkust-qr-code/id6468639032)

This tool allows HKUST members to create secure, dynamic, and personalized QR codes. These codes can be used for access control, such as opening doors with compatible panels.

**Highlights:** Generate secure QR codes, Dynamic and personalized codes, Access control for HKUST members, Smartdoor Panel integration

**In-app purchases:** none


## Frequently asked questions

### Is USThing free?

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

### Is HKUST QR Code free?

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

### Do USThing or HKUST QR Code have ads?

Neither USThing nor HKUST QR Code shows ads.

### Which is updated more often, USThing or HKUST QR Code?

USThing ships an update every 3 weeks, and HKUST QR Code every 2 months. Most recently, USThing was updated on September 13, 2026 and HKUST QR Code on September 20, 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.*