# PixelQR Scan vs Unit Converter & Dictionary

The clearest difference is rating: Unit Converter & Dictionary at 5.0 against PixelQR Scan's 3.8. Unit Converter & Dictionary also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). PixelQR Scan's advantage is in-app purchases (none vs 1) and ratings volume (10 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Unit Converter & Dictionary sells 1 in-app purchase, starting at $0.99 per month. PixelQR Scan asks for nothing beyond the download.

Unit Converter & Dictionary holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: PixelQR Scan has 10 ratings behind it against 1, so its average is the more settled of the two.

PixelQR Scan ships an update every 9 days, Unit Converter & Dictionary every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | PixelQR Scan | Unit Converter & Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (10 ratings)](https://appshunter.io/ios/app/pixelqr-scan/id6781202801/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-and-dictionary/id6795361946/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 78 MB | 13 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fuzhou Zhiyue Interactive Technology Co.,Ltd](https://appshunter.io/developer/6781202803) | [Mikoto Gateway](https://appshunter.io/developer/6795057863) |

## What reviewers say

### PixelQR Scan

[App page](https://appshunter.io/ios/app/pixelqr-scan/id6781202801)

Easily scan QR codes and barcodes from your camera or photos. Create custom codes for various content types, style them, and manage your history. Offers quick actions and local data storage for privacy.

**Highlights:** QR code and barcode scanning, Image-based code recognition, QR code creation, Styled code output, Local history and export, Home Screen quick actions

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

**In-app purchases:** none


### Unit Converter & Dictionary

[App page](https://appshunter.io/ios/app/unit-converter-and-dictionary/id6795361946)

This app offers comprehensive unit conversion across numerous categories, including specialized and traditional units. It also functions as a dictionary, explaining unit meanings, pronunciations, and providing fun facts. Real-time currency conversion is available, with an optional premium plan for AI assistance and ad removal.

**Highlights:** Extensive unit conversion categories, Unit dictionary with pronunciation and facts, Real-time currency conversion, Offline conversion capabilities, AI support for app usage (Premium), Traditional and specialized unit support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.99 | per month |


## Frequently asked questions

### Is PixelQR Scan free?

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

### Is Unit Converter & Dictionary free?

Unit Converter & Dictionary is free to download, with in-app purchases available.

### Which has better reviews, PixelQR Scan or Unit Converter & Dictionary?

Unit Converter & Dictionary is rated higher. PixelQR Scan averages 3.8 out of 5 from 10 ratings, while Unit Converter & Dictionary averages 5.0 from 1 ratings.

### Do PixelQR Scan or Unit Converter & Dictionary have ads?

Both PixelQR Scan and Unit Converter & Dictionary show ads.

### Which is updated more often, PixelQR Scan or Unit Converter & Dictionary?

PixelQR Scan ships an update every 9 days, and Unit Converter & Dictionary every 3 weeks. Most recently, PixelQR Scan was updated on October 31, 2026 and Unit Converter & Dictionary on October 31, 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.*