# 钢结构设计工具箱 vs 画门窗Pro

The clearest difference is price: 画门窗Pro at Free against 钢结构设计工具箱's $12.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

画门窗Pro is free to download; 钢结构设计工具箱 costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

钢结构设计工具箱 ships an update every 6 months, 画门窗Pro every 9 months. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 钢结构设计工具箱 | 画门窗Pro |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 9 months |
| Size | 19 MB | 40 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [疆 边](https://appshunter.io/developer/1124320934) | [强 文](https://appshunter.io/developer/674834521) |

## What reviewers say

### 钢结构设计工具箱

[App page](https://appshunter.io/ios/app/id1232998791)

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

**In-app purchases:** none


### 画门窗Pro

[App page](https://appshunter.io/ios/app/pro/id6446976815)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 钢结构设计工具箱 free?

钢结构设计工具箱 costs $12.99, with no in-app purchases.

### Is 画门窗Pro free?

画门窗Pro is free to download, with no in-app purchases.

### Do 钢结构设计工具箱 or 画门窗Pro have ads?

Neither 钢结构设计工具箱 nor 画门窗Pro shows ads.

### Which is updated more often, 钢结构设计工具箱 or 画门窗Pro?

钢结构设计工具箱 ships an update every 6 months, and 画门窗Pro every 9 months. Most recently, 钢结构设计工具箱 was updated on October 5, 2026 and 画门窗Pro on October 19, 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.*