# 消防工程师题库2021 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 消防工程师题库2021's 9. 消防工程师题库2021's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 消防工程师题库2021 sells 9 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 | 消防工程师题库2021 | 注册安全工程师小牛题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 36 months | — |
| Size | 30 MB | 52 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [盼 朱](https://appshunter.io/developer/1708664205) | [Hangzhou Kexue Technology Co., Ltd.](https://appshunter.io/developer/1556205586) |

## What reviewers say

### 消防工程师题库2021

[App page](https://appshunter.io/ios/app/2021/id1577317319)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP1个月 | $2.99 | one-time |
| VIP3个月 | $3.99 | one-time |
| VIP6个月 | $6.99 | one-time |
| VIP12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 |


### 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 消防工程师题库2021 free?

消防工程师题库2021 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.*