# QR Code Reader vs 作业改改

The clearest difference is ratings volume: QR Code Reader at 10 against 作业改改's 1. QR Code Reader also leads on device support. 作业改改's advantage is iOS requirement (9.0 vs 16.4). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. QR Code Reader sells 11 one-off in-app purchases and 作业改改 sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for QR Code Reader against 5.0 for 作业改改. That said, the two scores are not equally well evidenced: QR Code Reader has 10 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | QR Code Reader | 作业改改 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/qr-code-reader-barcode-and-qr/id1541089524/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6459903159/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | Freemium |
| Size | 54 MB | 30 MB |
| Requires iOS | 16.4 | **9.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen is SunJoy technology co., LTD](https://appshunter.io/developer/942371286) | [明笑 常](https://appshunter.io/developer/1683247572) |

## What reviewers say

### QR Code Reader

[App page](https://appshunter.io/ios/app/qr-code-reader-barcode-and-qr/id1541089524)

Easily create custom QR codes from text, URLs, videos, pictures, and business cards. Personalize your codes with beautification options for a unique touch. Share information quickly and securely.

**Highlights:** Convert text to QR code, Convert URLs to QR code, Convert videos/pictures to QR code, Create business card QR codes, Beautify and customize QR codes, Convert email information to QR code

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 白银会员一个月 | $5.99 | one-time |
| 月度会员（单次） | $5.99 | one-time |
| 黄金会员一个月 | $8.99 | one-time |
| 白银会员三个月 | $12.99 | one-time |
| 季度会员（单次） | $12.99 | one-time |
| 黄金会员三个月 | $21.99 | one-time |
| 白银会员永久 | $29.99 | one-time |
| 年度会员（单次） | $34.99 | one-time |
| 黄金会员永久 | $37.99 | one-time |
| 终身会员（买断） | $99.99 | one-time |
| 专属域名一年 | $149.99 | one-time |


### 作业改改

[App page](https://appshunter.io/ios/app/id6459903159)

This app quickly checks math calculations and grades English essays via photo or text input. It also scans documents into PDFs for easy sharing across devices, streamlining the grading and administrative process.

**Highlights:** Photo check for math calculations, AI grading for English essays, Document scanning to PDF, Cross-device sharing, Time-saving efficiency

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $6.99 | per month |
| 年会员 | $14.99 | per year |


## Frequently asked questions

### Is QR Code Reader free?

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

### Is 作业改改 free?

作业改改 is free to download, with in-app purchases available.

### Which has better reviews, QR Code Reader or 作业改改?

QR Code Reader and 作业改改 are both rated 5.0 out of 5 on the App Store, from 10 and 1 ratings respectively.

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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.*