# Chemical Substances: Chem-Quiz — Organic & Inorganic Chemistry

> Learn and quiz on 200 chemical substances with names, formulas, and structures. (iPhone/iPad app by Andrey Solovyev.)

- Source: https://appshunter.io/ios/app/chemical-substances-chem-quiz/id910222433 (this page in markdown: same URL + `.md`)
- Developer: [Andrey Solovyev](https://appshunter.io/developer/655223913)
- Category: Games, Education, Word
- Price: Free with in-app purchases
- Rating: 4.10/5 from 39 App Store ratings · 70 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 20 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 2 more
- Released: 2014-09-04
- Data updated: 2026-09-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/chemical-substances-chem-quiz/id910222433/reviews.md

## What is Chemical Substances?

Do you Know the Formula of Ammonia? Or Hydrogen Peroxide? What is the Structure of Benzene?

Learn 200 chemical substances that are studied in introductory and advanced chemistry classes:
* systematic and trivial names;
* structures and formulas;
* organic, inorganic, and organometallic compounds;
* from acids and oxides to hydrocarbons and alcohols;
* two levels: 100 easy and 100 difficult chemicals.

Choose the game mode: 
1) Spelling quizzes (easy and hard) - guess the word letter by letter.
2) Multiple-choice questions (with 4 or 6 answer options). It’s important to remember that you have only 3 lives.
3) Time game (give as many answers as you can in 1 minute) - you should give more than 25 correct answers to get a star.
Two learning tools:
* Flashcards where you can browse all compounds and their formulas without guessing.
* Table of all substances in the app.

The app is translated into 12 languages, including English, German, Spanish, and many others. So you can learn the names of the chemical compounds in foreign languages.
Advertisements can be removed by an in-app purchase.

It is a perfect app for every student preparing for chemistry classes, exams, or even for chemistry olympiads.

## Key features

- 200 chemical substances
- Systematic and trivial names
- Structures and formulas
- Spelling quizzes
- Multiple-choice questions
- Timed games
- Flashcards
- Table of substances

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Unlimited Hints | $2.99 | one-time |
| 5000 hints | $3.99 | one-time |
| 1000 hints | $0.99 | one-time |
| 10 000 hints | $5.99 | one-time |


## Recent user reviews (10 of 70)

All indexed reviews: https://appshunter.io/ios/app/chemical-substances-chem-quiz/id910222433/reviews.md

### 5/5 — あらゆる化学物質が網羅されている

*2026-04-23*

これは面白い。
理学部化学科卒の、IUPUC完読した私でも半分程度の正解率なのに有機無機双方の要素が入っていて、知らなかった物質が出てくると興奮してしまいます。化学と無縁だった人にもお薦めします。これら半分程度でも分かる人は珍しいと思います。樹脂やプラスチックの基本構造が載っているのが貴重です。図鑑代りに使える可能性があります。

### 5/5 — !!!

*2026-01-31*

원소를 외우기 좋아요

### 5/5 — La adoro

*2026-01-17, version 2.2.0*

È semplice, intuitiva e aiuta la memorizzazione! Mi piace tantissimo!

### 5/5 — 굿

*2025-08-17*

개맛도리

### 5/5 — 어?

*2025-06-26*

굉장히 재미있게 하고 있습니다. 근데 패드로 하는 경우가 많다보니 가로 형식이 지원이 안 되서 불편합니다. 참고해 주셨으면 좋겠습니다.

### 5/5 — Super app 👍

*2025-03-22*

C’est une super application 👍👍👍 ! J’apprends plein de choses, tout est gratuit, et ça marche sans wifi ! Peut-être que l’équivalent des noms des molécules non scientifique serait bien (par exemple : NaOCl : Hypochlorite de sodium (Eau de Javel))… Mais sinon c’est super et je la recommande à tous !!

### 1/5 — Worst quiz ever

*2025-02-26, version 2.2.0*

Slay it’s so werid

### 5/5 — Best game

*2025-02-09, version 2.2.0*

Best game I ever got you can learn from it best game

### 5/5 — 생각보다 괜찮네요

*2025-02-08*

생각보다 괜찮네요 별기대 안했는데 외우기에 나쁘지 않아요

### 5/5 — 너무재밌어요

*2025-02-03*

.

## Frequently asked questions about Chemical Substances

### What does the Chemical Substances: Chem-Quiz app do?

This app helps users learn and test their knowledge of 200 chemical substances commonly studied in introductory and advanced chemistry classes. It covers systematic and trivial names, structures, and formulas for organic, inorganic, and organometallic compounds through various quiz modes and learning tools.

### What are the key learning features of this chemistry app?

The app offers two learning tools: flashcards to browse all compounds and their formulas without guessing, and a table of all substances included. It also provides spelling quizzes, multiple-choice questions with 4 or 6 options, and a timed game mode to test recall speed.

### How much does Chemical Substances: Chem-Quiz cost?

The app is free to download and use, but it does display advertisements. Users have the option to remove these advertisements through an in-app purchase.

### Is this app suitable for beginners in chemistry?

Yes, the app includes two difficulty levels: 100 easy chemicals and 100 difficult chemicals. This makes it suitable for students at various stages of their chemistry education, from introductory classes to more advanced studies.

### Can I learn chemical names in different languages with this app?

Yes, the app is translated into 12 languages, including English, German, and Spanish. This allows users to learn the names of chemical compounds in foreign languages, which can be beneficial for international students or those studying abroad.

## Version history (last 3 releases)

### 2.2.0 — 2021-05-18

+ Table of all substances in the app.
+ Japanese, Korean, and Chinese translations. Now the app is translated into 12 languages, including English, Spanish, and many others.

### 2.0 — 2017-09-15

This app has been updated by Apple to display the Apple Watch app icon.

- Many new features (flashcards, stars) and improvements in game mechanics.

### 1.0 — 2014-09-04

No release notes.

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All apps by Andrey Solovyev: https://appshunter.io/developer/655223913

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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 2026-09-01.*