# 优鸿AI云课堂 vs 闯关鸭

The clearest difference is in-app purchases: 优鸿AI云课堂 at none against 闯关鸭's 8. 优鸿AI云课堂 also leads on update cadence (every 2 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 闯关鸭 sells 8 one-off in-app purchases. 优鸿AI云课堂 asks for nothing beyond the download.

优鸿AI云课堂 ships an update every 2 weeks, 闯关鸭 every 7 months. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 优鸿AI云课堂 | 闯关鸭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Size | 58 MB | 40 MB |
| Requires iOS | **11.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [武汉智云优鸿科技有限公司](https://appshunter.io/developer/1795822230) | [Guangzhou Don Quixote Education Technology Co., Ltd.](https://appshunter.io/developer/1135753513) |

## What reviewers say

### 优鸿AI云课堂

[App page](https://appshunter.io/ios/app/ai/id1503306961)

**Features:** macOS Compatibility

**In-app purchases:** none


### 闯关鸭

[App page](https://appshunter.io/ios/app/id6462012790)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 谷粒1.00 | $0.99 | one-time |
| 谷粒6.00 | $0.99 | one-time |
| 谷粒12.00 | $1.99 | one-time |
| 谷粒18.00 | $2.99 | one-time |
| 谷粒45.00 | $5.99 | one-time |
| 谷粒88.00 | $12.99 | one-time |
| 谷粒168.00 | $24.99 | one-time |
| 谷粒198.00 | $29.99 | one-time |


## Frequently asked questions

### Is 优鸿AI云课堂 free?

优鸿AI云课堂 is free to download, with no in-app purchases.

### Is 闯关鸭 free?

闯关鸭 is free to download, with in-app purchases available.

### Do 优鸿AI云课堂 or 闯关鸭 have ads?

Neither 优鸿AI云课堂 nor 闯关鸭 shows ads.

### Which is updated more often, 优鸿AI云课堂 or 闯关鸭?

优鸿AI云课堂 ships an update every 2 weeks, and 闯关鸭 every 7 months. Most recently, 优鸿AI云课堂 was updated on October 14, 2026 and 闯关鸭 on October 18, 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.*