# 旋轉圖形 vs 四合院AR

The clearest difference is update cadence: 四合院AR at every 5 months against 旋轉圖形's every 36 months. 旋轉圖形's advantage is iOS requirement (6.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

旋轉圖形 ships an update every 36 months, 四合院AR every 5 months. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 旋轉圖形 | 四合院AR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 5 months** |
| Size | 22 MB | 817 MB |
| Requires iOS | **6.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [DESIGN AND CULTURAL STUDIES WORKSHOP LIMITED](https://appshunter.io/developer/1442813794) |

## What reviewers say

### 旋轉圖形

[App page](https://appshunter.io/ios/app/id950974839)

**Features:** macOS Compatibility

**In-app purchases:** none


### 四合院AR

[App page](https://appshunter.io/ios/app/ar/id1493263543)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 旋轉圖形 free?

旋轉圖形 is free to download, with no in-app purchases.

### Is 四合院AR free?

四合院AR is free to download, with no in-app purchases.

### Do 旋轉圖形 or 四合院AR have ads?

Neither 旋轉圖形 nor 四合院AR shows ads.

### Which is updated more often, 旋轉圖形 or 四合院AR?

旋轉圖形 ships an update every 36 months, and 四合院AR every 5 months. Most recently, 旋轉圖形 was updated on September 29, 2026 and 四合院AR on October 3, 2026.

---

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