# KChem vs 高校化学・化学基礎の一問一答：ケムクイズ

The clearest difference is ads: KChem at none against 高校化学・化学基礎の一問一答：ケムクイズ's shown. KChem also leads on update cadence (daily vs every 11 days) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. KChem sells 1 in-app purchase, starting at $2.49 per month and 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. Whichever you choose, the download price is not the number that matters.

KChem ships an update daily, 高校化学・化学基礎の一問一答：ケムクイズ every 11 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | KChem | 高校化学・化学基礎の一問一答：ケムクイズ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 11 days |
| Monetization | Freemium | — |
| Size | 12 MB | 18 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Akihiko Kitamura](https://appshunter.io/developer/1585792497) | [TomatoAppLab](https://appshunter.io/developer/1676711750) |

## What reviewers say

### KChem

[App page](https://appshunter.io/ios/app/kchem/id1601032155)

This app helps high school students memorize organic chemistry concepts efficiently. It features a memorization mode for easy output, comprehensive coverage of high school organic chemistry topics, and clear explanations. Some advanced content requires a subscription.

**Highlights:** Memorization mode for active recall, Comprehensive high school organic chemistry content, Clear and easy-to-understand explanations, Subscription for advanced topics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $2.49 | per month |


### 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 |


## Frequently asked questions

### Is KChem free?

KChem is free to download, with in-app purchases available.

### 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.

### Do KChem or 高校化学・化学基礎の一問一答：ケムクイズ have ads?

高校化学・化学基礎の一問一答：ケムクイズ shows ads; KChem does not.

### Which is updated more often, KChem or 高校化学・化学基礎の一問一答：ケムクイズ?

KChem ships an update daily, and 高校化学・化学基礎の一問一答：ケムクイズ every 11 days. Most recently, KChem was updated on October 30, 2026 and 高校化学・化学基礎の一問一答：ケムクイズ on October 28, 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.*