# Scan Barcode & QR Code Reader vs Units Calculator

The clearest difference is in-app purchases: Units Calculator at none against Scan Barcode & QR Code Reader's 6. Scan Barcode & QR Code Reader's advantage is iOS requirement (12.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Scan Barcode & QR Code Reader sells 6 in-app purchases, starting at $4.99 per 7 days. Units Calculator asks for nothing beyond the download.

## The numbers

| Metric | Scan Barcode & QR Code Reader | Units Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 106 MB | 6 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VOLIO VIET NAM COMPANY LIMITED](https://appshunter.io/developer/1686372170) | [Rakesh Bhadani](https://appshunter.io/developer/1647133078) |

## What reviewers say

### Scan Barcode & QR Code Reader

[App page](https://appshunter.io/ios/app/scan-barcode-and-qr-code-reader/id6466260652)

**Features:** macOS Compatibility, Siri integration

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Discount PRO | $19.99 | per year |
| Yearly | $39.99 | per year |
| Discount PRO | $29.99 | one-time |
| Lifetime | $59.99 | one-time |


### Units Calculator

[App page](https://appshunter.io/ios/app/units-calculator/id6742182706)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scan Barcode & QR Code Reader free?

Scan Barcode & QR Code Reader is free to download, with in-app purchases available.

### Is Units Calculator free?

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

### Do Scan Barcode & QR Code Reader or Units Calculator have ads?

Both Scan Barcode & QR Code Reader and Units Calculator show ads.

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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.*