# 宅建の森 vs 危険物乙4 一問一答・模試 オツスキ！

The clearest difference is ads: 宅建の森 at none against 危険物乙4 一問一答・模試 オツスキ！'s shown. 宅建の森 also leads on iOS requirement (13.0 vs 15.0). 危険物乙4 一問一答・模試 オツスキ！'s advantage is update cadence (every 3 weeks vs every 6 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 宅建の森 sells 1 one-off in-app purchase and 危険物乙4 一問一答・模試 オツスキ！ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

宅建の森 ships an update every 6 weeks, 危険物乙4 一問一答・模試 オツスキ！ every 3 weeks. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 宅建の森 | 危険物乙4 一問一答・模試 オツスキ！ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 98 MB | 30 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [合同会社OLA](https://appshunter.io/developer/1832165711) | [NAGAKAWA MASAHIKO](https://appshunter.io/developer/1872718412) |

## What reviewers say

### 宅建の森

[App page](https://appshunter.io/ios/app/id6761770816)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全ての年度をアンロック | $2.99 | one-time |


### 危険物乙4 一問一答・模試 オツスキ！

[App page](https://appshunter.io/ios/app/4/id6801225154)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $2.99 | one-time |


## Frequently asked questions

### Is 宅建の森 free?

宅建の森 is free to download, with in-app purchases available.

### Is 危険物乙4 一問一答・模試 オツスキ！ free?

危険物乙4 一問一答・模試 オツスキ！ is free to download, with in-app purchases available.

### Do 宅建の森 or 危険物乙4 一問一答・模試 オツスキ！ have ads?

危険物乙4 一問一答・模試 オツスキ！ shows ads; 宅建の森 does not.

### Which is updated more often, 宅建の森 or 危険物乙4 一問一答・模試 オツスキ！?

宅建の森 ships an update every 6 weeks, and 危険物乙4 一問一答・模試 オツスキ！ every 3 weeks. Most recently, 宅建の森 was updated on October 24, 2026 and 危険物乙4 一問一答・模試 オツスキ！ on October 15, 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.*