# QR Code Reader vs A4

The clearest difference is in-app purchases: A4 at none against QR Code Reader's 5. A4 also leads on ads (none vs shown) and update cadence (every 5 days vs monthly). On price and device support there is nothing between them.

Both are free to download. QR Code Reader sells 5 in-app purchases, starting at $3.99 per 7 days. A4 asks for nothing beyond the download.

QR Code Reader ships an update monthly, A4 every 5 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | QR Code Reader | A4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (14 ratings)](https://appshunter.io/ios/app/qr-code-reader-qr-scanner/id1600442239/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 30.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 101 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [皓 季](https://appshunter.io/developer/1646402788) | [GUANDDONG TIANPU TECHNOLOGY GROUP CO.,LTD.](https://appshunter.io/developer/1637560013) |

## What reviewers say

### QR Code Reader

[App page](https://appshunter.io/ios/app/qr-code-reader-qr-scanner/id1600442239)

Easily scan barcodes and QR codes containing URLs, contact details, emails, and more. This app also allows you to generate your own QR codes quickly and efficiently. Share scanned information via email or social media.

**Highlights:** Scan QR codes and barcodes, Generate custom QR codes, Real-time scanning, Share scanned data, Automatic detection

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly member | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Weekly member Deals | $7.49 | per 7 days |
| Quarterly member | $9.99 | per 3 months |
| Annual membership | $9.99 | one-time |


### A4

[App page](https://appshunter.io/ios/app/a4-k/id6760325017)

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Code Reader free?

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

### Is A4 free?

A4 is free to download, with no in-app purchases.

### Do QR Code Reader or A4 have ads?

QR Code Reader shows ads; A4 does not.

### Which is updated more often, QR Code Reader or A4?

QR Code Reader ships an update monthly, and A4 every 5 days. Most recently, QR Code Reader was updated on October 12, 2026 and A4 on September 29, 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.*