# 有道慧学 vs 纠错大师

The clearest difference is update cadence: 纠错大师 at fortnightly against 有道慧学's every 6 weeks. 有道慧学's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

有道慧学 ships an update every 6 weeks, 纠错大师 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | 有道慧学 | 纠错大师 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Size | 47 MB | 99 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing NetEase Youdao Computer System Co.,Ltd](https://appshunter.io/developer/840227969) | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) |

## What reviewers say

### 有道慧学

[App page](https://appshunter.io/ios/app/id1580523022)

**Features:** Vision Pro support

**In-app purchases:** none


### 纠错大师

[App page](https://appshunter.io/ios/app/ai/id6444046564)

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

**In-app purchases:** none


## Frequently asked questions

### Is 有道慧学 free?

有道慧学 is free to download, with no in-app purchases.

### Is 纠错大师 free?

纠错大师 is free to download, with no in-app purchases.

### Do 有道慧学 or 纠错大师 have ads?

Neither 有道慧学 nor 纠错大师 shows ads.

### Which is updated more often, 有道慧学 or 纠错大师?

有道慧学 ships an update every 6 weeks, and 纠错大师 fortnightly. Most recently, 有道慧学 was updated on November 3, 2026 and 纠错大师 on November 3, 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.*