# CAD教程 vs 消防工程师

The clearest difference is in-app purchases: CAD教程 at none against 消防工程师's 3. CAD教程 also leads on iOS requirement (7.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 消防工程师 sells 3 one-off in-app purchases. CAD教程 asks for nothing beyond the download.

## The numbers

| Metric | CAD教程 | 消防工程师 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 12 MB | 30 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [立乾 董](https://appshunter.io/developer/963104158) | [Sichuan Palm Cloud Technology Co., Ltd.](https://appshunter.io/developer/983183897) |

## What reviewers say

### CAD教程

[App page](https://appshunter.io/ios/app/cad-cad/id1125439017)

**Features:** macOS Compatibility

**In-app purchases:** none


### 消防工程师

[App page](https://appshunter.io/ios/app/2026/id1260266429)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一级注册消防工程师VIP半年包 | $2.99 | one-time |
| 一级注册消防工程师VIP一年包 | $3.99 | one-time |
| 一级注册消防工程师VIP三年包 | $5.99 | one-time |


## Frequently asked questions

### Is CAD教程 free?

CAD教程 is free to download, with no in-app purchases.

### Is 消防工程师 free?

消防工程师 is free to download, with in-app purchases available.

### Do CAD教程 or 消防工程师 have ads?

Neither CAD教程 nor 消防工程师 shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*