# Useful QR Code Reader vs I Work At Site Calculator

The clearest difference is ads: I Work At Site Calculator at none against Useful QR Code Reader's shown. I Work At Site Calculator also leads on iOS requirement (13.0 vs 15.6). Useful QR Code Reader's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

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

Useful QR Code Reader ships an update weekly, I Work At Site Calculator every 3 weeks. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Useful QR Code Reader | I Work At Site Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 106 MB | 19 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [katapu.net](https://appshunter.io/developer/381898924) | [Ryan Knisley](https://appshunter.io/developer/1867434341) |

## What reviewers say

### Useful QR Code Reader

[App page](https://appshunter.io/ios/app/useful-qr-code-reader/id6738119243)

**Features:** macOS Compatibility

**In-app purchases:** none


### I Work At Site Calculator

[App page](https://appshunter.io/ios/app/i-work-at-site-calculator/id6757588472)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Useful QR Code Reader free?

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

### Is I Work At Site Calculator free?

I Work At Site Calculator is free to download, with no in-app purchases.

### Do Useful QR Code Reader or I Work At Site Calculator have ads?

Useful QR Code Reader shows ads; I Work At Site Calculator does not.

### Which is updated more often, Useful QR Code Reader or I Work At Site Calculator?

Useful QR Code Reader ships an update weekly, and I Work At Site Calculator every 3 weeks. Most recently, Useful QR Code Reader was updated on October 12, 2026 and I Work At Site Calculator on October 7, 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.*