# QR Inspector vs ST Robotics

The clearest difference is device support: QR Inspector at 3 against ST Robotics's 1. On price, update cadence, 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.

QR Inspector ships an update every 2 months, ST Robotics every 3 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | QR Inspector | ST Robotics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 3 MB | 34 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Federico Martinez](https://appshunter.io/developer/1551243312) | [STMicroelectronics](https://appshunter.io/developer/1801774735) |

## What reviewers say

### QR Inspector

[App page](https://appshunter.io/ios/app/qr-inspector/id6461312175)

**Features:** Vision Pro support

**In-app purchases:** none


### ST Robotics

[App page](https://appshunter.io/ios/app/st-robotics/id6739212512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QR Inspector free?

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

### Is ST Robotics free?

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

### Do QR Inspector or ST Robotics have ads?

Neither QR Inspector nor ST Robotics shows ads.

### Which is updated more often, QR Inspector or ST Robotics?

QR Inspector ships an update every 2 months, and ST Robotics every 3 months. Most recently, QR Inspector was updated on November 3, 2026 and ST Robotics on October 25, 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.*