# 机灵象启智v4 vs 书法AI

The clearest difference is in-app purchases: 机灵象启智v4 at none against 书法AI's 1. 机灵象启智v4 also leads on iOS requirement (12.0 vs 15.0). 书法AI's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 书法AI sells 1 in-app purchase, starting at $0.99 per year. 机灵象启智v4 asks for nothing beyond the download.

机灵象启智v4 ships an update every 6 weeks, 书法AI every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 机灵象启智v4 | 书法AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 248 MB | 86 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [山东企赢盈网络科技有限公司](https://appshunter.io/developer/1469337387) | [杭州星喆科技有限公司](https://appshunter.io/developer/6772909520) |

## What reviewers say

### 机灵象启智v4

[App page](https://appshunter.io/ios/app/v4/id6596754835)

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

**In-app purchases:** none


### 书法AI

[App page](https://appshunter.io/ios/app/ai/id6772909518)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 跟着谢昭然老师学书法_年付 | $0.99 | per year |


## Frequently asked questions

### Is 机灵象启智v4 free?

机灵象启智v4 is free to download, with no in-app purchases.

### Is 书法AI free?

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

### Do 机灵象启智v4 or 书法AI have ads?

Neither 机灵象启智v4 nor 书法AI shows ads.

### Which is updated more often, 机灵象启智v4 or 书法AI?

机灵象启智v4 ships an update every 6 weeks, and 书法AI every 2 weeks. Most recently, 机灵象启智v4 was updated on October 30, 2026 and 书法AI on October 31, 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.*