# 课程通 vs 音频提取器

The clearest difference is in-app purchases: 课程通 at none against 音频提取器's 4. 课程通 also leads on iOS requirement (9.0 vs 16.0). 音频提取器's advantage is update cadence (daily vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. 音频提取器 sells 4 in-app purchases, starting at $2.99 per 7 days. 课程通 asks for nothing beyond the download.

课程通 ships an update monthly, 音频提取器 daily. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 课程通 | 音频提取器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 21 MB | 154 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou Haimo Data Technology Co.,Ltd.](https://appshunter.io/developer/1503474184) | [同洲 王](https://appshunter.io/developer/1700737159) |

## What reviewers say

### 课程通

[App page](https://appshunter.io/ios/app/id1502954594)

**Features:** macOS Compatibility

**In-app purchases:** none


### 音频提取器

[App page](https://appshunter.io/ios/app/and/id6758710811)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员活动 | $2.99 | per 7 days |
| 周会员折扣 | $4.99 | per 7 days |
| 周会员订阅 | $6.99 | per 7 days |
| 订阅年会员 | $22.99 | per year |


## Frequently asked questions

### Is 课程通 free?

课程通 is free to download, with no in-app purchases.

### Is 音频提取器 free?

音频提取器 is free to download, with in-app purchases available.

### Do 课程通 or 音频提取器 have ads?

Neither 课程通 nor 音频提取器 shows ads.

### Which is updated more often, 课程通 or 音频提取器?

课程通 ships an update monthly, and 音频提取器 daily. Most recently, 课程通 was updated on October 2, 2026 and 音频提取器 on October 24, 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.*