# Máy pha màu vs QR code reader for PDF scanner

The clearest difference is in-app purchases: Máy pha màu at none against QR code reader for PDF scanner's 1. Máy pha màu also leads on ads (none vs shown) and update cadence (every 4 months vs every 13 months). On price and device support there is nothing between them.

Both are free to download. QR code reader for PDF scanner sells 1 one-off in-app purchase. Máy pha màu asks for nothing beyond the download.

Máy pha màu ships an update every 4 months, QR code reader for PDF scanner every 13 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Máy pha màu | QR code reader for PDF scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 13 months |
| Size | 19 MB | 31 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [do thong](https://appshunter.io/developer/896043624) | [Maria Melero Gonzalez Barandiaran](https://appshunter.io/developer/1342106159) |

## What reviewers say

### Máy pha màu

[App page](https://appshunter.io/ios/app/may-pha-mau/id1121131622)

**Features:** macOS Compatibility

**In-app purchases:** none


### QR code reader for PDF scanner

[App page](https://appshunter.io/ios/app/qr-code-reader-for-pdf-scanner/id1342106160)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Máy pha màu free?

Máy pha màu is free to download, with no in-app purchases.

### Is QR code reader for PDF scanner free?

QR code reader for PDF scanner is free to download, with in-app purchases available.

### Do Máy pha màu or QR code reader for PDF scanner have ads?

QR code reader for PDF scanner shows ads; Máy pha màu does not.

### Which is updated more often, Máy pha màu or QR code reader for PDF scanner?

Máy pha màu ships an update every 4 months, and QR code reader for PDF scanner every 13 months. Most recently, Máy pha màu was updated on October 6, 2026 and QR code reader for PDF scanner on October 10, 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.*