# 氢课 vs COE私塾

The clearest difference is in-app purchases: 氢课 at none against COE私塾's 6. COE私塾's advantage is update cadence (every 2 weeks vs every 3 weeks) and iOS requirement (9.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. COE私塾 sells 6 one-off in-app purchases. 氢课 asks for nothing beyond the download.

氢课 ships an update every 3 weeks, COE私塾 every 2 weeks. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 氢课 | COE私塾 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 51 MB | 74 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [氢课(上海)教育科技有限公司](https://appshunter.io/developer/1421666425) | [南京菁英荟萃网络科技有限公司](https://appshunter.io/developer/1741460817) |

## What reviewers say

### 氢课

[App page](https://appshunter.io/ios/app/id1421666426)

**Features:** macOS Compatibility

**In-app purchases:** none


### COE私塾

[App page](https://appshunter.io/ios/app/coe/id1455826383)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3云币 | $0.99 | one-time |
| 50 云币 | $6.99 | one-time |
| 68 云币 | $9.99 | one-time |
| 会员包年 | $39.99 | one-time |
| 1298 云币 | $199.99 | one-time |
| 2598 云币 | $399.99 | one-time |


## Frequently asked questions

### Is 氢课 free?

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

### Is COE私塾 free?

COE私塾 is free to download, with in-app purchases available.

### Do 氢课 or COE私塾 have ads?

Neither 氢课 nor COE私塾 shows ads.

### Which is updated more often, 氢课 or COE私塾?

氢课 ships an update every 3 weeks, and COE私塾 every 2 weeks. Most recently, 氢课 was updated on September 10, 2026 and COE私塾 on September 8, 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.*