# 四年级英语下册 vs 口语AI

The clearest difference is iOS requirement: 四年级英语下册 at 8.0 against 口语AI's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 四年级英语下册 sells 1 one-off in-app purchase and 口语AI sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 四年级英语下册 | 口语AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Size | 89 MB | 50 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [灿 吴](https://appshunter.io/developer/1533808980) | [Sichuan Danghe Technology Co., Ltd.](https://appshunter.io/developer/1702621045) |

## What reviewers say

### 四年级英语下册

[App page](https://appshunter.io/ios/app/id1550095992)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁全部点读内容 | $1.99 | one-time |


### 口语AI

[App page](https://appshunter.io/ios/app/ai/id6749158152)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡会员 | $3.99 | per month |
| 季卡会员 | $11.99 | per 3 months |
| 年卡会员 | $39.99 | per year |
| 单次上麦 | $0.99 | one-time |
| 终身会员 | $49.99 | one-time |


## Frequently asked questions

### Is 四年级英语下册 free?

四年级英语下册 is free to download, with in-app purchases available.

### Is 口语AI free?

口语AI is free to download, with in-app purchases available.

### Do 四年级英语下册 or 口语AI have ads?

Neither 四年级英语下册 nor 口语AI 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.*