# 不土不木规范 vs 注册结构工程师题库2021

The clearest difference is update cadence: 不土不木规范 at every 5 weeks against 注册结构工程师题库2021's every 36 months. 注册结构工程师题库2021's advantage is iOS requirement (13.0 vs 16). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 不土不木规范 sells 2 one-off in-app purchases and 注册结构工程师题库2021 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

不土不木规范 ships an update every 5 weeks, 注册结构工程师题库2021 every 36 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 不土不木规范 | 注册结构工程师题库2021 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1035544225/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 36 months |
| Size | 25 MB | 22 MB |
| Requires iOS | 16 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Beijing You Tu You Mu Network Technology Co.,ltd.](https://appshunter.io/developer/1035544224) | [Shenzhen Qianhaitiantian Financial Investment Service Co., Ltd.](https://appshunter.io/developer/1255477419) |

## What reviewers say

### 不土不木规范

[App page](https://appshunter.io/ios/app/id1035544225)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25元/30天 | $3.99 | one-time |
| 68元/365天 | $9.99 | one-time |


### 注册结构工程师题库2021

[App page](https://appshunter.io/ios/app/2021/id1580494696)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP1个月 | $2.99 | one-time |
| VIP2个月 | $3.99 | one-time |
| VIP6个月 | $6.99 | one-time |
| VIP12个月 | $9.99 | one-time |


## Frequently asked questions

### Is 不土不木规范 free?

不土不木规范 is free to download, with in-app purchases available.

### Is 注册结构工程师题库2021 free?

注册结构工程师题库2021 is free to download, with in-app purchases available.

### Do 不土不木规范 or 注册结构工程师题库2021 have ads?

Neither 不土不木规范 nor 注册结构工程师题库2021 shows ads.

### Which is updated more often, 不土不木规范 or 注册结构工程师题库2021?

不土不木规范 ships an update every 5 weeks, and 注册结构工程师题库2021 every 36 months. Most recently, 不土不木规范 was updated on November 2, 2026 and 注册结构工程师题库2021 on November 3, 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.*