# 注册安全工程师题库 vs 注册安全工程师小牛题库

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's 7. 注册安全工程师题库's advantage is device support and iOS requirement (9.0 vs 13.0). On price there is nothing between them.

Both are free to download. 注册安全工程师题库 sells 7 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 | 注册安全工程师题库 | 注册安全工程师小牛题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 83 MB | 52 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Yuwei Xu](https://appshunter.io/developer/1535128854) | [Hangzhou Kexue Technology Co., Ltd.](https://appshunter.io/developer/1556205586) |

## What reviewers say

### 注册安全工程师题库

[App page](https://appshunter.io/ios/app/id1579019787)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 押题套餐包 | $5.99 | one-time |
| 会员体验月卡 | $8.99 | one-time |
| 会员基础年卡 | $9.99 | one-time |
| 尊享二年套餐 | $14.99 | one-time |
| 两年特惠套餐 | $19.99 | one-time |
| 课程套餐价格 | $99.99 | one-time |
| 课程套餐价格 | $229.99 | one-time |


### 注册安全工程师小牛题库

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

**In-app purchases:** none


## Frequently asked questions

### Is 注册安全工程师题库 free?

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

### 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.

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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.*