# 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ vs 2級ボイラーの森

The clearest difference is in-app purchases: 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ at none against 2級ボイラーの森's 1. 2級ボイラーの森's advantage is update cadence (every 3 weeks vs every 15 months) and iOS requirement (15.6 vs 18.6). On price, ads and device support 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. 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ asks for nothing beyond the download.

第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ ships an update every 15 months, 2級ボイラーの森 every 3 weeks. Both last shipped on September 12, 2026.

## The numbers

| Metric | 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ | 2級ボイラーの森 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 99 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [合同会社OLA](https://appshunter.io/developer/1832165711) |

## What reviewers say

### 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ

[App page](https://appshunter.io/ios/app/3-lite/id1139521631)

Practice questions for the 3rd Class Refrigeration Engineer exam. Study by year with 5-choice questions and track your accuracy. Features include a check function for incorrect answers and a save feature to resume at any time.

**Highlights:** Yearly question sets, 5-choice format, Answer accuracy tracking, Automatic incorrect question recall, Save and resume functionality, Subject-specific data reset

**Features:** macOS Compatibility

**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 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ free?

第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ 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 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ or 2級ボイラーの森 have ads?

Neither 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ nor 2級ボイラーの森 shows ads.

### Which is updated more often, 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ or 2級ボイラーの森?

第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ ships an update every 15 months, and 2級ボイラーの森 every 3 weeks. Most recently, 第3種冷凍機械責任者試験問題集 lite　りすさんシリーズ was updated on September 12, 2026 and 2級ボイラーの森 on September 12, 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.*