# 得正AI学教师 vs 知行AI

The clearest difference is update cadence: 知行AI at every 2 weeks against 得正AI学教师's every 2 months. 得正AI学教师's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

得正AI学教师 ships an update every 2 months, 知行AI every 2 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 得正AI学教师 | 知行AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 58 MB | 29 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [广州青鹿教育科技有限公司](https://appshunter.io/developer/1274863451) | [湖南亿谷信息科技发展有限公司](https://appshunter.io/developer/979121213) |

## What reviewers say

### 得正AI学教师

[App page](https://appshunter.io/ios/app/ai/id6670192406)

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

**In-app purchases:** none


### 知行AI

[App page](https://appshunter.io/ios/app/ai/id6743461129)

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

**In-app purchases:** none


## Frequently asked questions

### Is 得正AI学教师 free?

得正AI学教师 is free to download, with no in-app purchases.

### Is 知行AI free?

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

### Do 得正AI学教师 or 知行AI have ads?

Neither 得正AI学教师 nor 知行AI shows ads.

### Which is updated more often, 得正AI学教师 or 知行AI?

得正AI学教师 ships an update every 2 months, and 知行AI every 2 weeks. Most recently, 得正AI学教师 was updated on October 4, 2026 and 知行AI on October 7, 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.*