# KChem - 効率よく暗記する高校有機化学

> High school organic chemistry memorization and study aid. (iPhone/iPad app by Akihiko Kitamura.)

- Source: https://appshunter.io/ios/app/kchem/id1601032155 (this page in markdown: same URL + `.md`)
- Developer: [Akihiko Kitamura](https://appshunter.io/developer/1585792497)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: American English
- Released: 2022-01-05
- Data updated: 2026-08-13
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/kchem/id1601032155/reviews.md

## What is KChem?

高校生の時、欲しかったアプリを作りました。

・暗記モードで、楽にアウトプット
・高校有機化学の内容を網羅
・見やすい解説
（・熱心な開発者）

・アルコール以降の項目はサブスクリプションが必要です。
・要望をたくさんお聞かせください。実現いたします。

レビューには建設的なご意見をお書きください。全部読んでいます。

利用規約：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| プレミアム | $2.49 | per month |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/kchem/id1601032155/reviews.md

### 3/5 — アルコールからサブスク

*2026-05-01*

とても活用しています。
広告もなくて網羅性もあり最高です。
ただ、アルコールから月額で課金しないと見れないというのが、、学生には痛いです。
買いきりだったら買いました。でも毎月更新ならちょっと買えないです。。勿体無いです

### 4/5 — 網羅している

*2024-08-18*

このアプリはきょう教科書の内容をかなり網羅しているので、基礎の暗記は大丈夫でしょう。 

 教科書の重要なところを赤シートで隠して覚える、というイメージです。

 分析と脂肪族までが無料で、アルコールや芳香族のところが有料となっているようです。

### 4/5 — すきだけど…

*2023-08-12*

アルカンやろうと思ったら置換反応の所で四塩化炭素がCCl^3になってた

### 5/5 — わかりやすい！

*2022-01-07*

とても使いやすく、勉強効率が上がりました！
受験勉強をする人におすすめしたいアプリです！

**Developer response:** レビューありがとうございます。嬉しいです🔥
何か欲しい機能や勉強したい項目が出てきたら、サポートまたはレビューに書いてください。

## Frequently asked questions about KChem

### What is KChem?

KChem is an educational app designed to help high school students memorize and understand organic chemistry concepts. It offers a memorization mode and covers a wide range of topics relevant to the high school curriculum.

### What content is available for free in KChem?

The app provides free access to core organic chemistry content suitable for high school students. However, topics starting from 'alcohol' onwards require a subscription to access.

### How much does the KChem subscription cost?

The premium subscription for KChem is priced at $2.49 per month. This subscription unlocks advanced topics and features beyond the free content.

### What devices does KChem support?

KChem is available on iPhone, iPad, and iPod. It is designed to run on Apple's mobile operating systems.

### How often is KChem updated?

KChem was last updated on January 5, 2022, with version 1.0.2. The developer is actively seeking user feedback for future improvements and features.

### What is the age rating for KChem?

KChem has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger learners, though its content is targeted at high school level.

### Does KChem have ads?

No, KChem does not contain advertisements. The app is free to download and use, with optional in-app purchases for premium content.

### Can I suggest new features for KChem?

Yes, the developer encourages users to share their requests and suggestions. They are committed to implementing user-requested features to improve the app.

## Version history (last 2 releases)

### 1.0.2 — 2022-01-05

・コンテンツの修正

### 1.0.1 — 2022-01-05

No release notes.

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## More apps by Akihiko Kitamura

- [K-Schedule](https://appshunter.io/ios/app/k-schedule/id1585792495)
- [無機化学 - 徹底暗記](https://appshunter.io/ios/app/id6737172145)

All apps by Akihiko Kitamura: https://appshunter.io/developer/1585792497

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*