# 择吉程序 vs 中观学堂

The clearest difference is in-app purchases: 中观学堂 at none against 择吉程序's 1. 中观学堂 also leads on update cadence (every 5 days vs every 4 months) and iOS requirement (12.0 vs 16). On price, ads and device support there is nothing between them.

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

择吉程序 ships an update every 4 months, 中观学堂 every 5 days. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 择吉程序 | 中观学堂 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 6 MB | 82 MB |
| Requires iOS | 16 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [印社 王](https://appshunter.io/developer/961872883) | [Anhui Qianzhixing Culture Media Co., Ltd..](https://appshunter.io/developer/1626037900) |

## What reviewers say

### 择吉程序

[App page](https://appshunter.io/ios/app/id1010188926)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 择吉程序6年期 | $89.99 | one-time |


### 中观学堂

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 择吉程序 free?

择吉程序 is free to download, with in-app purchases available.

### Is 中观学堂 free?

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

### Do 择吉程序 or 中观学堂 have ads?

Neither 择吉程序 nor 中观学堂 shows ads.

### Which is updated more often, 择吉程序 or 中观学堂?

择吉程序 ships an update every 4 months, and 中观学堂 every 5 days. Most recently, 择吉程序 was updated on October 18, 2026 and 中观学堂 on October 2, 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.*