# 错题机H2 vs 优学错题本

The clearest difference is in-app purchases: 错题机H2 at none against 优学错题本's 3. 错题机H2 also leads on device support and iOS requirement (9.0 vs 11.0). On price there is nothing between them.

Both are free to download. 优学错题本 sells 3 in-app purchases, starting at $1.99 per 7 days. 错题机H2 asks for nothing beyond the download.

## The numbers

| Metric | 错题机H2 | 优学错题本 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/h2/id1585629795/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Monetization | Free | — |
| Size | 264 MB | 25 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [厦门爱立得科技有限公司](https://appshunter.io/developer/1354877112) | [清清 孔](https://appshunter.io/developer/1740686855) |

## What reviewers say

### 错题机H2

[App page](https://appshunter.io/ios/app/h2/id1585629795)

This app combines learning, office productivity, and daily life tools. It pairs with a mini printer for inkless printing of notes, labels, and photos. Features include error correction, document editing, and text recognition.

**Highlights:** Error correction printing, Cloud-based error notebook, Chinese traditional culture learning, Foreign language learning with pronunciation, Document editing and printing, Text recognition from images, Label and photo printing, Daily planner and to-do lists

**Features:** macOS Compatibility

**In-app purchases:** none


### 优学错题本

[App page](https://appshunter.io/ios/app/id6664059614)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $1.99 | per 7 days |
| 月会员 | $3.99 | per month |
| 年会员 | $19.99 | per year |


## Frequently asked questions

### Is 错题机H2 free?

错题机H2 is free to download, with no in-app purchases.

### Is 优学错题本 free?

优学错题本 is free to download, with in-app purchases available.

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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.*