# AI先生　危険物乙４類 vs レストランサービス技能検定3級

The clearest difference is in-app purchases: AI先生　危険物乙４類 at none against レストランサービス技能検定3級's 1. レストランサービス技能検定3級's advantage is device support and iOS requirement (16.0 vs 18.1). On price there is nothing between them.

Both are free to download. レストランサービス技能検定3級 sells 1 one-off in-app purchase. AI先生　危険物乙４類 asks for nothing beyond the download.

## The numbers

| Metric | AI先生　危険物乙４類 | レストランサービス技能検定3級 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.1 | **16.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [reiko hori](https://appshunter.io/developer/1777370692) | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) |

## What reviewers say

### AI先生　危険物乙４類

[App page](https://appshunter.io/ios/app/ai/id6738078612)

**In-app purchases:** none


### レストランサービス技能検定3級

[App page](https://appshunter.io/ios/app/3/id6758534849)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| レストランサービス技能検定3級 試験対策 | $1.99 | one-time |


## Frequently asked questions

### Is AI先生　危険物乙４類 free?

AI先生　危険物乙４類 is free to download, with no in-app purchases.

### Is レストランサービス技能検定3級 free?

レストランサービス技能検定3級 is free to download, with in-app purchases available.

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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.*