# 国字云书法 vs PM圈子

The clearest difference is in-app purchases: PM圈子 at none against 国字云书法's 13. PM圈子 also leads on iOS requirement (9.0 vs 12.0). 国字云书法'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. 国字云书法 sells 12 one-off in-app purchases. PM圈子 asks for nothing beyond the download.

国字云书法 ships an update every 2 months, PM圈子 every 9 months. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 国字云书法 | PM圈子 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Size | 67 MB | 48 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Guozi Technology Company Limited.](https://appshunter.io/developer/1533561381) | [Aura International Education Technology Co., Ltd.](https://appshunter.io/developer/1548890703) |

## What reviewers say

### 国字云书法

[App page](https://appshunter.io/ios/app/id1533561379)

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 暑期硬笔训练营 | $0.99 | one-time |
| 翰墨款配套课程 | $5.99 | one-time |
| 墨宝版配套课程 | $5.99 | one-time |
| 芳墨款配套课程 | $5.99 | one-time |
| 王永芬讲解绘画技法与名家作品鉴赏 | $7.99 | one-time |
| 2021年9月墨香主题课 | $19.99 | one-time |
| 冷万里隶书系列讲座 | $39.99 | one-time |
| 谷少将（硬笔书法）系列课程 | $79.99 | one-time |
| 冷万里（曹全碑）书法系列课程 | $79.99 | one-time |
| 张世靖山水技法类系列课 | $79.99 | one-time |
| 孟繁禧（欧楷）书法系列课 | $99.99 | one-time |
| 冯军伟（九成宫）书法系列课 | $399.99 | one-time |


### PM圈子

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

**In-app purchases:** none


## Frequently asked questions

### Is 国字云书法 free?

国字云书法 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 国字云书法 or PM圈子 have ads?

Neither 国字云书法 nor PM圈子 shows ads.

### Which is updated more often, 国字云书法 or PM圈子?

国字云书法 ships an update every 2 months, and PM圈子 every 9 months. Most recently, 国字云书法 was updated on October 3, 2026 and PM圈子 on October 9, 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.*