# 注册安全工程师题库2022 vs 安全工程师题库2021

The clearest difference is update cadence: 安全工程师题库2021 at every 13 months against 注册安全工程师题库2022's every 36 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 注册安全工程师题库2022 sells 8 one-off in-app purchases and 安全工程师题库2021 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

注册安全工程师题库2022 ships an update every 36 months, 安全工程师题库2021 every 13 months. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 注册安全工程师题库2022 | 安全工程师题库2021 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 13 months** |
| Size | 43 MB | 48 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shenzhen Qianhaitiantian Financial Investment Service Co., Ltd.](https://appshunter.io/developer/1255477419) | [盼 朱](https://appshunter.io/developer/1708664205) |

## What reviewers say

### 注册安全工程师题库2022

[App page](https://appshunter.io/ios/app/2022/id1578466865)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP1个月 | $3.99 | one-time |
| VIP9个月 | $4.99 | one-time |
| VIP12个月 | $7.99 | one-time |
| VIP24个月 | $12.99 | one-time |
| 价值98元的课程 | $14.99 | one-time |
| 价值198元的课程 | $29.99 | one-time |
| 价值298元的课程 | $46.99 | one-time |
| 价值388元的课程 | $59.99 | one-time |


### 安全工程师题库2021

[App page](https://appshunter.io/ios/app/2021/id1580658966)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP1个月 | $3.99 | one-time |
| VIP9个月 | $4.99 | one-time |
| VIP12个月 | $7.99 | one-time |
| VIP24个月 | $12.99 | one-time |
| 价值98元的课程 | $14.99 | one-time |
| 价值198元的课程 | $29.99 | one-time |
| 价值298元的课程 | $46.99 | one-time |
| 价值388元的课程 | $59.99 | one-time |
| 价值488元的课程 | $74.99 | one-time |


## Frequently asked questions

### Is 注册安全工程师题库2022 free?

注册安全工程师题库2022 is free to download, with in-app purchases available.

### Is 安全工程师题库2021 free?

安全工程师题库2021 is free to download, with in-app purchases available.

### Do 注册安全工程师题库2022 or 安全工程师题库2021 have ads?

Neither 注册安全工程师题库2022 nor 安全工程师题库2021 shows ads.

### Which is updated more often, 注册安全工程师题库2022 or 安全工程师题库2021?

注册安全工程师题库2022 ships an update every 36 months, and 安全工程师题库2021 every 13 months. Most recently, 注册安全工程师题库2022 was updated on September 13, 2026 and 安全工程师题库2021 on September 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.*