# 2級ボイラーの森 vs 建物衛生管理技術者対策

The clearest difference is price: 2級ボイラーの森 at Free against 建物衛生管理技術者対策's $4.99. 建物衛生管理技術者対策's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

2級ボイラーの森 is free to download; 建物衛生管理技術者対策 costs $4.99 up front. 2級ボイラーの森 sells 1 one-off in-app purchase. 建物衛生管理技術者対策 asks for nothing beyond the download.

2級ボイラーの森 ships an update every 3 weeks, 建物衛生管理技術者対策 every 5 weeks. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 2級ボイラーの森 | 建物衛生管理技術者対策 |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 99 MB | 34 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [合同会社OLA](https://appshunter.io/developer/1832165711) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### 2級ボイラーの森

[App page](https://appshunter.io/ios/app/2/id6747311296)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| すべての年度がアンロックされます | $3.99 | one-time |


### 建物衛生管理技術者対策

[App page](https://appshunter.io/ios/app/id6769847149)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 2級ボイラーの森 free?

2級ボイラーの森 is free to download, with in-app purchases available.

### Is 建物衛生管理技術者対策 free?

建物衛生管理技術者対策 costs $4.99, with no in-app purchases.

### Do 2級ボイラーの森 or 建物衛生管理技術者対策 have ads?

Neither 2級ボイラーの森 nor 建物衛生管理技術者対策 shows ads.

### Which is updated more often, 2級ボイラーの森 or 建物衛生管理技術者対策?

2級ボイラーの森 ships an update every 3 weeks, and 建物衛生管理技術者対策 every 5 weeks. Most recently, 2級ボイラーの森 was updated on October 16, 2026 and 建物衛生管理技術者対策 on October 5, 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.*