# 三类人员题库 vs 安全员鸣题库

The clearest difference is update cadence: 安全员鸣题库 at every 5 weeks against 三类人员题库's every 4 months. 三类人员题库's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 三类人员题库 sells 10 one-off in-app purchases and 安全员鸣题库 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

三类人员题库 ships an update every 4 months, 安全员鸣题库 every 5 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 三类人员题库 | 安全员鸣题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 103 MB | 686 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [长沙优学互动信息技术有限公司](https://appshunter.io/developer/1247376685) | [英杰 邹](https://appshunter.io/developer/1797330502) |

## What reviewers say

### 三类人员题库

[App page](https://appshunter.io/ios/app/abc/id1433156473)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10学币 | $0.99 | one-time |
| 1学币 | $0.99 | one-time |
| 40学币 | $5.99 | one-time |
| 50学币 | $6.99 | one-time |
| 三个月题库 | $11.99 | one-time |
| 三个月找答案+题库 | $14.99 | one-time |
| 100学币 | $14.99 | one-time |
| 120学币 | $17.99 | one-time |
| 150学币 | $19.99 | one-time |
| 300学币 | $39.99 | one-time |


### 安全员鸣题库

[App page](https://appshunter.io/ios/app/2026abc/id6743377576)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 有效期为1个月安全员会员 | $4.99 | one-time |
| 有效期为3个月安全员会员 | $6.99 | one-time |
| 有效期为6个月安全员会员 | $7.99 | one-time |
| 有效期为12个月安全员会员 | $9.99 | one-time |


## Frequently asked questions

### Is 三类人员题库 free?

三类人员题库 is free to download, with in-app purchases available.

### Is 安全员鸣题库 free?

安全员鸣题库 is free to download, with in-app purchases available.

### Do 三类人员题库 or 安全员鸣题库 have ads?

Neither 三类人员题库 nor 安全员鸣题库 shows ads.

### Which is updated more often, 三类人员题库 or 安全员鸣题库?

三类人员题库 ships an update every 4 months, and 安全员鸣题库 every 5 weeks. Most recently, 三类人员题库 was updated on September 13, 2026 and 安全员鸣题库 on September 20, 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.*