# 国字云墨韵 vs PM圈子

The clearest difference is in-app purchases: PM圈子 at none against 国字云墨韵's 10. PM圈子 also leads on iOS requirement (9.0 vs 12.0). 国字云墨韵's advantage is update cadence (every 2 months vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. 国字云墨韵 sells 10 one-off in-app purchases. PM圈子 asks for nothing beyond the download.

国字云墨韵 ships an update every 2 months, PM圈子 every 9 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | 国字云墨韵 | PM圈子 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Size | 70 MB | 48 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Xu Xian science and Technology Development Co., Ltd.](https://appshunter.io/developer/1180872447) | [Aura International Education Technology Co., Ltd.](https://appshunter.io/developer/1548890703) |

## What reviewers say

### 国字云墨韵

[App page](https://appshunter.io/ios/app/id1616818055)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 李信军八段锦 | $2.99 | one-time |
| 李信军茶与养生 | $2.99 | one-time |
| 李信军道教养生 | $2.99 | one-time |
| 硬笔课程-硬笔书法 | $6.99 | one-time |
| 廖廷建节气养生 | $9.99 | one-time |
| 硬笔课程-语文同步硬笔课程 | $12.99 | one-time |
| 姜沛养生绘画 | $19.99 | one-time |
| 张鸿飞写意画系列课 | $39.99 | one-time |
| 廖廷建养生书法 | $44.99 | one-time |
| 楷书结体64法 | $299.99 | one-time |


### PM圈子

[App page](https://appshunter.io/ios/app/pm/id1640401704)

**In-app purchases:** none


## Frequently asked questions

### Is 国字云墨韵 free?

国字云墨韵 is free to download, with in-app purchases available.

### Is PM圈子 free?

PM圈子 is free to download, with no in-app purchases.

### Do 国字云墨韵 or PM圈子 have ads?

Neither 国字云墨韵 nor PM圈子 shows ads.

### Which is updated more often, 国字云墨韵 or PM圈子?

国字云墨韵 ships an update every 2 months, and PM圈子 every 9 months. Most recently, 国字云墨韵 was updated on October 27, 2026 and PM圈子 on October 27, 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.*