# 注安网校 vs 安全工程师题库2021

注安网校 and 安全工程师题库2021 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 注安网校 sells 4 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.

注安网校 ships an update every 8 months, 安全工程师题库2021 every 13 months. The most recent releases landed on October 9, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 注安网校 | 安全工程师题库2021 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 13 months |
| Size | 184 MB | 48 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Beijing Dedao Classroom Education Technology Co., Ltd.](https://appshunter.io/developer/1507531027) | [盼 朱](https://appshunter.io/developer/1708664205) |

## What reviewers say

### 注安网校

[App page](https://appshunter.io/ios/app/id1507531028)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 108 学习币 | $15.99 | one-time |
| 208 学习币 | $30.99 | one-time |
| 518 学习币 | $79.99 | one-time |
| 1048 学习币 | $159.99 | 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 注安网校 free?

注安网校 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 注安网校 or 安全工程师题库2021 have ads?

Neither 注安网校 nor 安全工程师题库2021 shows ads.

### Which is updated more often, 注安网校 or 安全工程师题库2021?

注安网校 ships an update every 8 months, and 安全工程师题库2021 every 13 months. Most recently, 注安网校 was updated on October 9, 2026 and 安全工程师题库2021 on October 25, 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.*