# 可牛英语 vs 流利鸭

The clearest difference is iOS requirement: 流利鸭 at 12.0 against 可牛英语's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 可牛英语 sells 10 one-off in-app purchases and 流利鸭 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 可牛英语 | 流利鸭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Size | 84 MB | 56 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou Xunyi Technology Company Limited](https://appshunter.io/developer/1722110262) | [Guangzhou Don Quixote Education Technology Co., Ltd.](https://appshunter.io/developer/1135753513) |

## What reviewers say

### 可牛英语

[App page](https://appshunter.io/ios/app/id6499072459)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 增加1000个单词上限 | $0.99 | one-time |
| 增加500个单词上限 | $0.99 | one-time |
| 增加3000个单词上限 | $2.99 | one-time |
| 增加6000个单词上限 | $3.99 | one-time |
| 1个月会员 | $4.99 | one-time |
| 3个月会员 | $9.99 | one-time |
| 单词数无限 | $9.99 | one-time |
| 增加10000个单词上限 | $9.99 | one-time |
| 1年会员 | $19.99 | one-time |
| 永久会员 | $69.99 | one-time |


### 流利鸭

[App page](https://appshunter.io/ios/app/id6740518764)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 口语AI月度会员 | $14.99 | one-time |
| 口语AI季度会员 | $29.99 | one-time |
| 口语AI半年度会员 | $39.99 | one-time |
| 口语AI年度会员 | $59.99 | one-time |
| 口语AI超级会员 | $99.99 | one-time |


## Frequently asked questions

### Is 可牛英语 free?

可牛英语 is free to download, with in-app purchases available.

### Is 流利鸭 free?

流利鸭 is free to download, with in-app purchases available.

### Do 可牛英语 or 流利鸭 have ads?

Neither 可牛英语 nor 流利鸭 shows ads.

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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.*