# 2級ボイラー技士試験 過去問集 vs エコ検定ミニ問題集

The clearest difference is update cadence: 2級ボイラー技士試験 過去問集 at every 2 months against エコ検定ミニ問題集's every 33 months. 2級ボイラー技士試験 過去問集 also leads on iOS requirement (17.0 vs 26.4). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

2級ボイラー技士試験 過去問集 ships an update every 2 months, エコ検定ミニ問題集 every 33 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 2級ボイラー技士試験 過去問集 | エコ検定ミニ問題集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | **Every 2 months** | Every 33 months |
| Size | 21 MB | 10 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [Kenta Momiyama](https://appshunter.io/developer/1394560747) | [TANAKA KOHEI](https://appshunter.io/developer/1653570130) |

## 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


### エコ検定ミニ問題集

[App page](https://appshunter.io/ios/app/eco/id6463727177)

**In-app purchases:** none


## 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 エコ検定ミニ問題集 free?

エコ検定ミニ問題集 is free to download, with no in-app purchases.

### Which is updated more often, 2級ボイラー技士試験 過去問集 or エコ検定ミニ問題集?

2級ボイラー技士試験 過去問集 ships an update every 2 months, and エコ検定ミニ問題集 every 33 months. Most recently, 2級ボイラー技士試験 過去問集 was updated on September 22, 2026 and エコ検定ミニ問題集 on September 9, 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.*