# 注册安全工程师小牛题库 vs 注册安全工程师题库2025官方大纲

The clearest difference is in-app purchases: 注册安全工程师小牛题库 at none against 注册安全工程师题库2025官方大纲's 8. 注册安全工程师题库2025官方大纲's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 注册安全工程师题库2025官方大纲 sells 8 one-off in-app purchases. 注册安全工程师小牛题库 asks for nothing beyond the download.

## The numbers

| Metric | 注册安全工程师小牛题库 | 注册安全工程师题库2025官方大纲 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 months |
| Size | 52 MB | 70 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou Kexue Technology Co., Ltd.](https://appshunter.io/developer/1556205586) | [Chongqing Kaixin network technology Co., LTD](https://appshunter.io/developer/1809882583) |

## What reviewers say

### 注册安全工程师小牛题库

[App page](https://appshunter.io/ios/app/24/id6476246149)

**In-app purchases:** none


### 注册安全工程师题库2025官方大纲

[App page](https://appshunter.io/ios/app/2025/id6745240962)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 开通会员3个月 | $3.99 | one-time |
| 开通会员9个月 | $4.99 | one-time |
| 开通会员12个月 | $7.99 | one-time |
| 开通会员24个月 | $12.99 | one-time |
| 购买视频课程12个月 | $22.99 | one-time |
| 购买套餐视频课程12个月 | $29.99 | one-time |
| 购买精品视频课程12个月 | $39.99 | one-time |
| 购买无忧视频课程12个月 | $79.99 | one-time |


## Frequently asked questions

### Is 注册安全工程师小牛题库 free?

注册安全工程师小牛题库 is free to download, with no in-app purchases.

### Is 注册安全工程师题库2025官方大纲 free?

注册安全工程师题库2025官方大纲 is free to download, with in-app purchases available.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*