# 牙e学堂 vs 医伟达

The clearest difference is in-app purchases: 医伟达 at none against 牙e学堂's 10. 医伟达 also leads on device support. 牙e学堂's advantage is iOS requirement (12.0 vs 15). On price there is nothing between them.

Both are free to download. 牙e学堂 sells 10 one-off in-app purchases. 医伟达 asks for nothing beyond the download.

## The numbers

| Metric | 牙e学堂 | 医伟达 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 115 MB | 42 MB |
| Requires iOS | **12.0** | 15 |
| Devices | — | **iPhone, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [四川牙易在线网络科技有限公司](https://appshunter.io/developer/1427040323) | [Shanghai Yiweida Technology Co., Ltd.](https://appshunter.io/developer/1770425347) |

## What reviewers say

### 牙e学堂

[App page](https://appshunter.io/ios/app/e/id6466788729)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 学币299个 | $39.99 | one-time |
| 学币799个 | $99.99 | one-time |
| 学币899个 | $129.99 | one-time |
| 学币999个 | $149.99 | one-time |
| 学币1999个 | $299.99 | one-time |
| 学币2999个 | $399.99 | one-time |
| 学币3999个 | $599.99 | one-time |
| 学币4999个 | $699.99 | one-time |
| 学币5999个 | $899.99 | one-time |
| 学币6999个 | $999.99 | one-time |


### 医伟达

[App page](https://appshunter.io/ios/app/id6717580824)

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

**In-app purchases:** none


## Frequently asked questions

### Is 牙e学堂 free?

牙e学堂 is free to download, with in-app purchases available.

### Is 医伟达 free?

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

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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.*