# 2級ボイラー技士試験 過去問集 vs 2級ボイラーの森

The clearest difference is in-app purchases: 2級ボイラー技士試験 過去問集 at none against 2級ボイラーの森's 1. 2級ボイラーの森's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price there is nothing between them.

Both are free to download. 2級ボイラーの森 sells 1 one-off in-app purchase. 2級ボイラー技士試験 過去問集 asks for nothing beyond the download.

2級ボイラー技士試験 過去問集 ships an update every 2 months, 2級ボイラーの森 every 3 weeks. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 2級ボイラー技士試験 過去問集 | 2級ボイラーの森 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 21 MB | 99 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kenta Momiyama](https://appshunter.io/developer/1394560747) | [合同会社OLA](https://appshunter.io/developer/1832165711) |

## What reviewers say

### 2級ボイラー技士試験 過去問集

[App page](https://appshunter.io/ios/app/2/id1595430564)

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

**In-app purchases:** none


### 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 | $2.99 | one-time |


## Frequently asked questions

### Is 2級ボイラー技士試験 過去問集 free?

2級ボイラー技士試験 過去問集 is free to download, with no in-app purchases.

### 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.

### Do 2級ボイラー技士試験 過去問集 or 2級ボイラーの森 have ads?

2級ボイラー技士試験 過去問集 shows ads; 2級ボイラーの森 does not.

### Which is updated more often, 2級ボイラー技士試験 過去問集 or 2級ボイラーの森?

2級ボイラー技士試験 過去問集 ships an update every 2 months, and 2級ボイラーの森 every 3 weeks. Most recently, 2級ボイラー技士試験 過去問集 was updated on September 22, 2026 and 2級ボイラーの森 on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*