# 易错词库 vs 字词句段出题器

The clearest difference is iOS requirement: 字词句段出题器 at 13.0 against 易错词库's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 易错词库 sells 1 one-off in-app purchase and 字词句段出题器 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

易错词库 ships an update every 11 days, 字词句段出题器 every 9 days. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 易错词库 | 字词句段出题器 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 45 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [Sanming Gemini Information Technology Co., Ltd.](https://appshunter.io/developer/1556431785) |

## 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 |


### 字词句段出题器

[App page](https://appshunter.io/ios/app/id6550890349)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡会员 | $3.99 | one-time |
| 学期卡会员 | $9.99 | one-time |
| 学年卡会员 | $14.99 | one-time |
| 永久卡会员 | $24.99 | one-time |


## Frequently asked questions

### Is 易错词库 free?

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

### Is 字词句段出题器 free?

字词句段出题器 is free to download, with in-app purchases available.

### Do 易错词库 or 字词句段出题器 have ads?

Neither 易错词库 nor 字词句段出题器 shows ads.

### Which is updated more often, 易错词库 or 字词句段出题器?

易错词库 ships an update every 11 days, and 字词句段出题器 every 9 days. Most recently, 易错词库 was updated on September 17, 2026 and 字词句段出题器 on September 15, 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.*