# 校内外 vs 榫卯结构3D

The clearest difference is price: 校内外 at Free against 榫卯结构3D's $0.99. 榫卯结构3D's advantage is in-app purchases (none vs 9). On ads, device support and iOS requirement there is nothing between them.

校内外 is free to download; 榫卯结构3D costs $0.99 up front. 校内外 sells 9 one-off in-app purchases. 榫卯结构3D asks for nothing beyond the download.

## The numbers

| Metric | 校内外 | 榫卯结构3D |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 111 MB | 54 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京易连忆生](https://appshunter.io/developer/698457861) | [北京才牛图科技有限公司](https://appshunter.io/developer/1556885180) |

## What reviewers say

### 校内外

[App page](https://appshunter.io/ios/app/id698457858)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 45 XiaoBei = 45 CNY | $6.99 | one-time |
| 98 XiaoBei = 98 CNY | $14.99 | one-time |
| 148 XiaoBei = 148 CNY | $21.99 | one-time |
| 248 XiaoBei = 248 CNY | $37.99 | one-time |
| 348 XiaoBei = 348 CNY | $54.99 | one-time |
| 488 XiaoBei = 488 CNY | $74.99 | one-time |
| 698 XiaoBei = 698 CNY | $109.99 | one-time |
| 898 XiaoBei = 898 CNY | $139.99 | one-time |
| 1098 XiaoBei = 1098 CNY | $169.99 | one-time |


### 榫卯结构3D

[App page](https://appshunter.io/ios/app/3d/id6784708800)

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

**In-app purchases:** none


## Frequently asked questions

### Is 校内外 free?

校内外 is free to download, with in-app purchases available.

### Is 榫卯结构3D free?

榫卯结构3D costs $0.99, with no in-app purchases.

### Do 校内外 or 榫卯结构3D have ads?

Neither 校内外 nor 榫卯结构3D shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*