# 易错词库 vs 跟AI学

The clearest difference is in-app purchases: 跟AI学 at none against 易错词库's 1. 跟AI学 also leads on iOS requirement (13.4 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. 易错词库 sells 1 one-off in-app purchase. 跟AI学 asks for nothing beyond the download.

## The numbers

| Metric | 易错词库 | 跟AI学 |
| --- | --- | --- |
| Price | Free | Free |
| 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 | 27 MB |
| Requires iOS | 16.6 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [酷得少年(天津)文化传播有限公司](https://appshunter.io/developer/1279715324) |

## 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 |


### 跟AI学

[App page](https://appshunter.io/ios/app/ai/id6758009000)

**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 跟AI学 free?

跟AI学 is free to download, with no in-app purchases.

### Do 易错词库 or 跟AI学 have ads?

Neither 易错词库 nor 跟AI学 shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*