# 紫禁城祥瑞PRO vs 音悦岛

The clearest difference is update cadence: 紫禁城祥瑞PRO at fortnightly against 音悦岛's every 40 months. 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.

紫禁城祥瑞PRO ships an update fortnightly, 音悦岛 every 40 months. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 紫禁城祥瑞PRO | 音悦岛 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pro/id1374792897/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 40 months |
| Monetization | Free | — |
| Size | 2.0 GB | 224 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Palace Museum](https://appshunter.io/developer/631295918) | [Beijing Jiuyueqiji Culture Communication Co., Ltd.](https://appshunter.io/developer/1239305909) |

## What reviewers say

### 紫禁城祥瑞PRO

[App page](https://appshunter.io/ios/app/pro/id1374792897)

Explore the rich history and cultural significance of 17 traditional auspicious symbols from the Forbidden City. Discover hidden secrets behind cultural icons through interactive 3D models and detailed explanations of over 170 artifacts from the Palace Museum collection.

**Highlights:** Explore 17 traditional auspicious symbols, Discover secrets behind cultural icons, Interactive 3D models of artifacts, Detailed explanations of 170+ Palace Museum treasures, Learn about historical evolution and cultural connotations, Engaging interactive 'Easter eggs', Fresh and elegant hand-drawn art style

**Features:** macOS Compatibility

**In-app purchases:** none


### 音悦岛

[App page](https://appshunter.io/ios/app/id1480334400)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 紫禁城祥瑞PRO free?

紫禁城祥瑞PRO is free to download, with no in-app purchases.

### Is 音悦岛 free?

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

### Do 紫禁城祥瑞PRO or 音悦岛 have ads?

Neither 紫禁城祥瑞PRO nor 音悦岛 shows ads.

### Which is updated more often, 紫禁城祥瑞PRO or 音悦岛?

紫禁城祥瑞PRO ships an update fortnightly, and 音悦岛 every 40 months. Most recently, 紫禁城祥瑞PRO was updated on November 2, 2026 and 音悦岛 on October 29, 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.*