# iTo vs 一级消防工程师

The clearest difference is in-app purchases: iTo at none against 一级消防工程师's 5. 一级消防工程师's advantage is update cadence (every 3 months vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 一级消防工程师 sells 5 one-off in-app purchases. iTo asks for nothing beyond the download.

iTo ships an update every 15 months, 一级消防工程师 every 3 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iTo | 一级消防工程师 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 months** |
| Size | 368 MB | 83 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [北京金风科创风电设备有限公司](https://appshunter.io/developer/1423530935) | [Yuwei Xu](https://appshunter.io/developer/1535128854) |

## What reviewers say

### iTo

[App page](https://appshunter.io/ios/app/ito/id1424771733)

**Features:** macOS Compatibility

**In-app purchases:** none


### 一级消防工程师

[App page](https://appshunter.io/ios/app/id1571882824)

**Features:** macOS Compatibility

**In-app purchases (5)**

| 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 |


## Frequently asked questions

### Is iTo free?

iTo is free to download, with no in-app purchases.

### Is 一级消防工程师 free?

一级消防工程师 is free to download, with in-app purchases available.

### Do iTo or 一级消防工程师 have ads?

Neither iTo nor 一级消防工程师 shows ads.

### Which is updated more often, iTo or 一级消防工程师?

iTo ships an update every 15 months, and 一级消防工程师 every 3 months. Most recently, iTo was updated on November 2, 2026 and 一级消防工程师 on October 27, 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.*