# QR Code · Barcode Reader&Maker vs mchain

The clearest difference is price: mchain at Free against QR Code · Barcode Reader&Maker's $0.99. mchain also leads on update cadence (weekly vs every 21 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

mchain is free to download; QR Code · Barcode Reader&Maker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QR Code · Barcode Reader&Maker ships an update every 21 months, mchain weekly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | QR Code · Barcode Reader&Maker | mchain |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/qr-code-barcode-reader-and-maker/id6738623449/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Weekly** |
| Monetization | Paid | — |
| Size | 18 MB | 145 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [志勇 杨](https://appshunter.io/developer/1137372489) | [m2cloud Inc](https://appshunter.io/developer/1566484064) |

## What reviewers say

### QR Code · Barcode Reader&Maker

[App page](https://appshunter.io/ios/app/qr-code-barcode-reader-and-maker/id6738623449)

Easily scan and generate QR codes and barcodes for various purposes, from accessing menus and WiFi to sharing contact information. Organize your scan and creation history with custom folders and export data for further use.

**Highlights:** Scan QR codes and barcodes from camera or photos, Create custom QR codes for URLs, WiFi, VCards, and more, Support for numerous code formats, Organize scan/creation history with folders, Export history as CSV files, Ad-free experience

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

**In-app purchases:** none


### mchain

[App page](https://appshunter.io/ios/app/mchain/id6740797123)

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Code · Barcode Reader&Maker free?

QR Code · Barcode Reader&Maker costs $0.99, with no in-app purchases.

### Is mchain free?

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

### Do QR Code · Barcode Reader&Maker or mchain have ads?

Neither QR Code · Barcode Reader&Maker nor mchain shows ads.

### Which is updated more often, QR Code · Barcode Reader&Maker or mchain?

QR Code · Barcode Reader&Maker ships an update every 21 months, and mchain weekly. Most recently, QR Code · Barcode Reader&Maker was updated on October 24, 2026 and mchain on October 30, 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.*