# 高校化学・化学基礎の一問一答：ケムクイズ vs MRIの勉強ドリル

The clearest difference is in-app purchases: MRIの勉強ドリル at none against 高校化学・化学基礎の一問一答：ケムクイズ's 1. MRIの勉強ドリル also leads on ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. 高校化学・化学基礎の一問一答：ケムクイズ sells 1 one-off in-app purchase. MRIの勉強ドリル asks for nothing beyond the download.

高校化学・化学基礎の一問一答：ケムクイズ ships an update every 2 weeks, MRIの勉強ドリル every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | 高校化学・化学基礎の一問一答：ケムクイズ | MRIの勉強ドリル |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 18 MB | 21 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TomatoAppLab](https://appshunter.io/developer/1676711750) | [Kaito Murakami](https://appshunter.io/developer/1842867197) |

## What reviewers say

### 高校化学・化学基礎の一問一答：ケムクイズ

[App page](https://appshunter.io/ios/app/id6763279883)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告をずっと非表示にする | $3.99 | one-time |


### MRIの勉強ドリル

[App page](https://appshunter.io/ios/app/mri/id6802350793)

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

**In-app purchases:** none


## Frequently asked questions

### Is 高校化学・化学基礎の一問一答：ケムクイズ free?

高校化学・化学基礎の一問一答：ケムクイズ is free to download, with in-app purchases available.

### Is MRIの勉強ドリル free?

MRIの勉強ドリル is free to download, with no in-app purchases.

### Do 高校化学・化学基礎の一問一答：ケムクイズ or MRIの勉強ドリル have ads?

高校化学・化学基礎の一問一答：ケムクイズ shows ads; MRIの勉強ドリル does not.

### Which is updated more often, 高校化学・化学基礎の一問一答：ケムクイズ or MRIの勉強ドリル?

高校化学・化学基礎の一問一答：ケムクイズ ships an update every 2 weeks, and MRIの勉強ドリル every 4 days. Most recently, 高校化学・化学基礎の一問一答：ケムクイズ was updated on October 25, 2026 and MRIの勉強ドリル on October 25, 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.*