# Chemical structure Karuta — Learn Chem structure w/ Karuta

> Learn chemical structures via a traditional Japanese card game format. (iPhone/iPad app by Beta Computing Co., Ltd..)

- Source: https://appshunter.io/ios/app/chemical-structure-karuta/id6504676483 (this page in markdown: same URL + `.md`)
- Developer: [Beta Computing Co., Ltd.](https://appshunter.io/developer/1456718333)
- Category: Games, Education, Card, Word
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 131 MB
- Languages: American English, Japanese
- Released: 2024-06-30
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/chemical-structure-karuta/id6504676483/reviews.md

## What is Chemical structure Karuta?

Chemical structure formula Karuta

Chemical structure formula Karuta allows you to naturally acquire knowledge about chemical compounds and structures through the traditional Japanese card game format ("Karuta"). It is suitable for a wide range of users, from beginners to those who wish to deepen their understanding of chemistry.

This app is completely free. There are no in-app purchases or advertisements, so you can use it with peace of mind.

App Features:

1. A Fun Learning Experience
Even if you find chemistry challenging, this game-based approach helps you retain knowledge naturally while having fun.

2. Extensive Card Sets
The app includes a diverse range of card sets focusing on pharmaceutical structures, including hydrocarbons, functional groups, and benzene rings. You can also study visually using the list view.

3. Comprehensive Learning Support
The app features audio narration, allowing you to learn chemical structures by ear. Additionally, you can view detailed explanatory videos for each structure. While designed with pharmacy students in mind, it is also highly recommended for science, engineering, and high school students.

4. CPU Battles with Multiple Difficulty Levels
Adjust the difficulty to match your skill level. The app offers a wide range of levels, from easy CPU opponents for beginners to challenging ones for advanced players.

5. Challenge Mode (Japanese Only)
A single-player mode where you can play Chemical Structure Karuta on your own. Clearing stages unlocks new cards.

6. Time Attack Mode (Japanese Only)
Test your speed by grabbing cards as fast as possible to record your best time. Compete against other players on the global leaderboard.


Rules:

- Grab 25 cards laid out on the field.
- Three specific characteristics of a chemical structure will be read aloud to identify the card.
- You can take a card even while a hint is being read.
- Making 3 or more mistakes results in a game over.
- You may continue to try for the correct card even after making a mistake.


Target Users:

- Students: Ideal for previewing or reviewing chemistry and pharmacology coursework.
- Teachers: Can be utilized as a teaching tool or integrated into classroom activities.
- Chemistry Enthusiasts: Perfect for anyone looking to deepen their chemical knowledge.


Request for Users:
Upon launching the app for the first time, we kindly ask for your cooperation in completing a brief survey (4 questions, approximately 1 minute).
Note: Survey results may be used for academic research papers.

Message:
This "Structure Karuta" began as a project to help everyone—whether they excel at organic chemistry or struggle with it—enjoy the learning process. During development, we received valuable advice from Professor Seiji Esaki of the School of Pharmacy at Osaka Ohtani University. This app is part of an educational research project and is supported by JSPS KAKENHI Grant Number 23K02725.

I hope that through this app, many people will become familiar with chemical structures and find a bridge to further learning.

Mai Aoe
School of Pharmacy, Hyogo Medical University



Contact Information:
Inquiries regarding Chemical structure formula Karuta:
Pharmacy Education Center, School of Pharmacy, Hyogo Medical University
yaku-edcenter@hyo-med.ac.jp

Inquiries regarding the App:
Beta Computing Co., Ltd.
info@betacomputing.co.jp

## Key features

- Card-based learning game
- Audio narration and video explanations
- Extensive card sets (pharmaceutical, hydrocarbons, etc.)
- CPU battles with adjustable difficulty
- Solo practice mode
- Visual list view for structures

## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/chemical-structure-karuta/id6504676483/reviews.md

### 3/5 — 最高に良い

*2026-07-03*

すごい良い

ただ改善をお願いしたい点があります
フェノールとサリチル酸の区別がヒントだけではつかないです
改善求めます
よろしくお願いします

### 3/5 — とても良いが改善点もある

*2025-12-17*

基本的に新しくておもしろいです。有機の復習に最適で、ゲーム感覚で学べて楽しいです。UIも良くてこちらのモチベーションも高まります。広告が無いのもものすごくストレスフリーに使用できるので今までにはなかったなと感じます。

改善していただきたい点は3つです
1、対戦成績の管理
後に対人戦を実装するのかもしれませんが、対CPU戦における結果を記録して常時確認できるようなシステムを作ってほしいです。試合後に表示されるものをまとめて見られるようになると、より充実感も得られますし、過去の成績と見比べることで自分成長度合いがわかって、継続しようという気持ちになると思います。このアプリは某かるたアプリのゲームを参考にして作られたように見えるので、そのアプリに近づけていただきたけると嬉しいです。

2、高分子分野の実装
今まで見てきた有機化学に関するアプリの中で1番魅力を感じていますが、それと同時に有機化合物の構造式、というジャンルのアプリ、コンテンツは実際には数多く存在します。その中でさらに他と差別化していくためには高分子分野の実装が必要になると思います。モノマーを札にすることもできますし、重合度をnとして札にすることもできると思います。単に脂肪族芳香族だけでなく、糖、アミノ酸、合成高分子などが加わるとより一層優れたアプリになると思います。
全てを取り入れずとも、高分子分野が少しでも加わるとまた変わるのかなと思います

3、バグについて
他のレビューにもありましたが、札の情報が出る直前に札を取られてしまったり、札が確定する前に取られてしまうと、こちらとしてはどうしようもありません。確かに、そんなに真剣に勝負に臨む必要はなく、CPUになんとしても勝つことはこのアプリの本質では無いので重視することではないのですが、使用感が良くなることは、ユーザーの満足度が高まることと直結すると思いますので修正していただけると幸いです。

以上が改善していただきたい点です。あくまでも1ユーザーの意見であることはご了承下さい。まだすでにこれらの改善を進めている場合もお節介な意見になり申し訳ありません。
このアプリがより広く普及することを願っています。よろしくお願いいたします。

### 3/5 — 修正希望

*2025-11-30*

メタンの読み上げに、「炭素間は単結合」は不適
あとは確定していないのにCPUに取られるのは癪

### 3/5 — 確定してないのに

*2025-11-29*

CPU普通・難は構造が確定してない段階で取ってきます。勝ちようがないです。おそらく似たような構造の札(例えば二重結合を持つ炭化水素とか)は出題順が固定されてしまっていて、CPUのAIがその順番を覚えてしまっているのだと思います。設計ミス。僕がプレイした限り、2-メチルプロパンとブタン(ともに炭素数4の炭化水素)は絶対に2-メチルプロパンが先に読上げられます。

### 3/5 — せめて確定してからにしてほしい

*2025-11-26*

CPUのレベルを"難しい"に設定すると、稀にまだ2択が絞れない段階で札を取ってくることがある。もしシステム上ヒントの順番などから選択肢が確定しているのであれば、こちらは知る由もないのでそこは改善して欲しい。ゲームの内容自体はとても楽しく勉強に活かせるのでそこだけが惜しい。

### 4/5 — 雰囲気はすき

*2025-11-09*

概ね楽しい。
だがまだ情報が確定していないのにお手つきなしでCPUが取ってくる。
おかしいと思う。
あと欲を言えばオンライン対戦がしたい。

### 4/5 — これが欲しい！

*2025-10-22*

友達と対戦できる機能が欲しいです！

### 4/5 — おねがい！！

*2025-10-22*

ほんまに人対戦させて欲しい

### 3/5 — 素晴らしいアプリ‼️ただ､､､

*2025-10-18*

高校有機化学を学ぶために使用しています。楽しくゲーム感覚で学べて飽きずにできます。ですが、CPUの難しいを倒してからは目標がなくなりモチベーションが下がってしまいます。どうかレートが反映されるオンライン対戦の実装をしてほしいです。きっと神ゲーになります。お願い‼️
評価は期待を込めて★★★☆☆とさせていただきます。

### 5/5 — 楽すぎだろ

*2025-06-11*

難しいとか嘘つかないでください。

## Frequently asked questions about Chemical structure Karuta

### What is Chemical structure Karuta?

Chemical structure Karuta is a free educational game that teaches chemical structures and compounds using a traditional Japanese card game format. It offers audio narration and video explanations to aid learning.

### Is Chemical structure Karuta free to play?

Yes, Chemical structure Karuta is completely free to use. It does not contain any in-app purchases or advertisements, allowing for uninterrupted learning.

### What kind of chemical structures can I learn with Chemical structure Karuta?

The app includes extensive card sets focusing on pharmaceutical structures, hydrocarbons, functional groups, and benzene rings. You can also study these visually through a list view.

### Does Chemical structure Karuta have multiplayer?

Chemical structure Karuta features CPU battles with multiple difficulty levels, allowing for solo practice or competitive play against AI opponents. It does not currently support human multiplayer.

### What are the learning features of Chemical structure Karuta?

Learning is supported through audio narration for structures, detailed explanatory videos for each, and a game-based approach to retain knowledge naturally. The game involves identifying cards based on three read-aloud characteristics.

### What is the age rating for Chemical structure Karuta?

Chemical structure Karuta has an age rating of 4+. It is designed to be accessible for a wide range of users, from beginners to those seeking to deepen their chemistry knowledge.

### How often is Chemical structure Karuta updated?

The latest version of Chemical structure Karuta is 1.1.0, last updated on March 26, 2026. Updates typically focus on improving the learning experience and expanding content.

### What devices is Chemical structure Karuta available on?

Chemical structure Karuta is available on iPhone, iPad, and iPod devices. It is designed to be compatible with Apple's mobile operating systems.

## Version history (last 4 releases)

### 1.2.0 — 2026-07-27

■ New Card Sets Added (Japanese only)
- Biochemistry: 50 cards
- Pharmaceutical Structures: 50 cards
- Natural Compounds: 50 cards

■ New Features Added (Japanese only)
- Card Selection: Play across 4 progressive stages (Basic Structures, Biochemistry, Pharmaceutical Structures, and Natural Compounds).
- Challenge Mode: A single-player mode that allows you to play on your own.
- Time Attack Mode: Race against the clock by grabbing cards as fast as you can.
- Leaderboards: Compete for the best times against other players.
- Chemical Names Display: You can now display chemical structure names directly on the cards.

### 1.1.0 — 2026-03-26

English support has been added.

### 1.0.1 — 2024-09-02

かるた札の一部の情報が誤っていたため修正しました。

### 1.0.0 — 2024-07-01

No release notes.

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## Related topics

[chemical structure karuta](https://appshunter.io/ios/topics/chemical-structure-karuta)

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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 2026-08-25.*