# 中观学堂 vs 息光

The clearest difference is in-app purchases: 中观学堂 at none against 息光's 1. 中观学堂 also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 息光 sells 1 one-off in-app purchase. 中观学堂 asks for nothing beyond the download.

中观学堂 ships an update every 5 days, 息光 every 4 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 中观学堂 | 息光 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 82 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Anhui Qianzhixing Culture Media Co., Ltd..](https://appshunter.io/developer/1626037900) | [浩宇 李](https://appshunter.io/developer/1875349921) |

## What reviewers say

### 中观学堂

[App page](https://appshunter.io/ios/app/id6469775258)

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

**In-app purchases:** none


### 息光

[App page](https://appshunter.io/ios/app/id6763760274)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 创建自动化 | $2.99 | one-time |


## Frequently asked questions

### Is 中观学堂 free?

中观学堂 is free to download, with no in-app purchases.

### Is 息光 free?

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

### Do 中观学堂 or 息光 have ads?

Neither 中观学堂 nor 息光 shows ads.

### Which is updated more often, 中观学堂 or 息光?

中观学堂 ships an update every 5 days, and 息光 every 4 days. Most recently, 中观学堂 was updated on October 18, 2026 and 息光 on October 7, 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.*