# 微试验 vs 注册结构工程师题库2021

The clearest difference is iOS requirement: 微试验 at 9.0 against 注册结构工程师题库2021's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 微试验 sells 6 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.

微试验 ships an update every 26 months, 注册结构工程师题库2021 every 36 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 微试验 | 注册结构工程师题库2021 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 26 months** | Every 36 months |
| Size | 46 MB | 22 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [家豪 张](https://appshunter.io/developer/1282220725) | [Shenzhen Qianhaitiantian Financial Investment Service Co., Ltd.](https://appshunter.io/developer/1255477419) |

## What reviewers say

### 微试验

[App page](https://appshunter.io/ios/app/id1282220726)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6枚金币 | $0.99 | one-time |
| 30枚金币 | $4.99 | one-time |
| 60枚金币 | $8.99 | one-time |
| 98枚金币 | $14.99 | one-time |
| 198枚金币 | $29.99 | one-time |
| 588枚金币 | $89.99 | 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 微试验 free?

微试验 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 微试验 or 注册结构工程师题库2021 have ads?

Neither 微试验 nor 注册结构工程师题库2021 shows ads.

### Which is updated more often, 微试验 or 注册结构工程师题库2021?

微试验 ships an update every 26 months, and 注册结构工程师题库2021 every 36 months. Most recently, 微试验 was updated on October 13, 2026 and 注册结构工程师题库2021 on October 10, 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.*