# 央音海伦智能课堂 vs 胚胎发育3D

The clearest difference is device support: 胚胎发育3D at 3 against 央音海伦智能课堂's 1. 胚胎发育3D also leads on iOS requirement (10.0 vs 15.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 央音海伦智能课堂 | 胚胎发育3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 2.5 GB | 2.4 GB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [HAILUN PIANO CO., LTD.](https://appshunter.io/developer/1104870330) | [上海众茂医疗科技有限公司](https://appshunter.io/developer/1508471532) |

## What reviewers say

### 央音海伦智能课堂

[App page](https://appshunter.io/ios/app/id1467155773)

**Features:** macOS Compatibility

**In-app purchases:** none


### 胚胎发育3D

[App page](https://appshunter.io/ios/app/3d/id1611271538)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 央音海伦智能课堂 free?

央音海伦智能课堂 is free to download, with no in-app purchases.

### Is 胚胎发育3D free?

胚胎发育3D is free to download, with no in-app purchases.

### Do 央音海伦智能课堂 or 胚胎发育3D have ads?

Neither 央音海伦智能课堂 nor 胚胎发育3D 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.*