# 易错词库 vs 小学数学练与学

The clearest difference is price: 易错词库 at Free against 小学数学练与学's $0.99. 易错词库 also leads on iOS requirement (16.6 vs 26.1). 小学数学练与学's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

易错词库 is free to download; 小学数学练与学 costs $0.99 up front. 易错词库 sells 1 one-off in-app purchase. 小学数学练与学 asks for nothing beyond the download.

## The numbers

| Metric | 易错词库 | 小学数学练与学 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 4 MB |
| Requires iOS | **16.6** | 26.1 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [宝珍 杜](https://appshunter.io/developer/1825073574) |

## What reviewers say

### 易错词库

[App page](https://appshunter.io/ios/app/id6450763094)

This app helps students eliminate errors in Chinese characters, pinyin, and idioms. It offers a comprehensive dictionary of commonly mistaken words and provides learning materials from educational websites to boost Chinese language proficiency for exams.

**Highlights:** 3000+ common error words dictionary, Curated educational materials, High-frequency updates, Authoritative dictionary definitions, Save and favorite words for review

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP 服务 | $0.99 | one-time |


### 小学数学练与学

[App page](https://appshunter.io/ios/app/id6789511136)

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

**In-app purchases:** none


## Frequently asked questions

### Is 易错词库 free?

易错词库 is free to download, with in-app purchases available.

### Is 小学数学练与学 free?

小学数学练与学 costs $0.99, with no in-app purchases.

### Do 易错词库 or 小学数学练与学 have ads?

Neither 易错词库 nor 小学数学练与学 shows ads.

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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.*