# 消防工程师 vs 消防工程师题库2021

The clearest difference is update cadence: 消防工程师 at every 2 months against 消防工程师题库2021's every 36 months. 消防工程师题库2021's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 消防工程师 sells 3 one-off in-app purchases and 消防工程师题库2021 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

消防工程师 ships an update every 2 months, 消防工程师题库2021 every 36 months. The most recent releases landed on July 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 消防工程师 | 消防工程师题库2021 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 36 months |
| Size | 30 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sichuan Palm Cloud Technology Co., Ltd.](https://appshunter.io/developer/983183897) | [盼 朱](https://appshunter.io/developer/1708664205) |

## What reviewers say

### 消防工程师

[App page](https://appshunter.io/ios/app/2026/id1260266429)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一级注册消防工程师VIP半年包 | $2.99 | one-time |
| 一级注册消防工程师VIP一年包 | $3.99 | one-time |
| 一级注册消防工程师VIP三年包 | $5.99 | one-time |


### 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 |


## Frequently asked questions

### Is 消防工程师 free?

消防工程师 is free to download, with in-app purchases available.

### 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.

### Do 消防工程师 or 消防工程师题库2021 have ads?

Neither 消防工程师 nor 消防工程师题库2021 shows ads.

### Which is updated more often, 消防工程师 or 消防工程师题库2021?

消防工程师 ships an update every 2 months, and 消防工程师题库2021 every 36 months. Most recently, 消防工程师 was updated on July 24, 2026 and 消防工程师题库2021 on September 8, 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.*