# 儿童专注力训练 vs 易错词库

The clearest difference is price: 易错词库 at Free against 儿童专注力训练's $0.99. 易错词库 also leads on ads (none vs shown) and update cadence (every 11 days vs every 47 months). 儿童专注力训练's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 89%). On device support there is nothing between them.

易错词库 is free to download; 儿童专注力训练 costs $0.99 up front. 易错词库 sells 1 one-off in-app purchase. 儿童专注力训练 asks for nothing beyond the download.

儿童专注力训练 ships an update every 47 months, 易错词库 every 11 days. The most recent releases landed on August 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 儿童专注力训练 | 易错词库 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 47 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 10 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [春 张](https://appshunter.io/developer/1507900641) | [尧 魏](https://appshunter.io/developer/1658434412) |

## What reviewers say

### 儿童专注力训练

[App page](https://appshunter.io/ios/app/id1508987697)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 儿童专注力训练 free?

儿童专注力训练 costs $0.99, with no in-app purchases.

### Is 易错词库 free?

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

### Do 儿童专注力训练 or 易错词库 have ads?

儿童专注力训练 shows ads; 易错词库 does not.

### Which is updated more often, 儿童专注力训练 or 易错词库?

儿童专注力训练 ships an update every 47 months, and 易错词库 every 11 days. Most recently, 儿童专注力训练 was updated on August 28, 2026 and 易错词库 on September 17, 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.*