# Chemical Elements Quiz vs 英単語タイムアタック SYNC

The clearest difference is update cadence: 英単語タイムアタック SYNC at weekly against Chemical Elements Quiz's every 22 months. Chemical Elements Quiz's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chemical Elements Quiz ships an update every 22 months, 英単語タイムアタック SYNC weekly. The most recent releases landed on August 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Chemical Elements Quiz | 英単語タイムアタック SYNC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/chemical-elements-quiz/id841747373/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 22 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 47 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazunari Hiyoshi](https://appshunter.io/developer/517438375) | [Naoto Tazawa](https://appshunter.io/developer/1866843317) |

## What reviewers say

### Chemical Elements Quiz

[App page](https://appshunter.io/ios/app/chemical-elements-quiz/id841747373)

Test your knowledge of chemical elements with this engaging quiz app. It offers three distinct quiz modes and three difficulty levels to challenge learners. Perfect for students and anyone interested in chemistry.

**Highlights:** Three quiz modes, Three difficulty levels, Touch correct answer quiz, Input correct answer quiz, Select by atomic number quiz

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

**In-app purchases:** none


### 英単語タイムアタック SYNC

[App page](https://appshunter.io/ios/app/sync/id6761302059)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Elements Quiz free?

Chemical Elements Quiz is free to download, with no in-app purchases.

### Is 英単語タイムアタック SYNC free?

英単語タイムアタック SYNC is free to download, with no in-app purchases.

### Do Chemical Elements Quiz or 英単語タイムアタック SYNC have ads?

Both Chemical Elements Quiz and 英単語タイムアタック SYNC show ads.

### Which is updated more often, Chemical Elements Quiz or 英単語タイムアタック SYNC?

Chemical Elements Quiz ships an update every 22 months, and 英単語タイムアタック SYNC weekly. Most recently, Chemical Elements Quiz was updated on August 7, 2026 and 英単語タイムアタック SYNC on September 9, 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.*