# Chemical structure Karuta vs BuzzQ

The clearest difference is review sentiment: BuzzQ at 100% against Chemical structure Karuta's 41%. BuzzQ also leads on update cadence (every 3 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Chemical structure Karuta ships an update every 3 months, BuzzQ every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Chemical structure Karuta | BuzzQ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 41.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 131 MB | 38 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Beta Computing Co., Ltd.](https://appshunter.io/developer/1456718333) | [Yuto Sugomori](https://appshunter.io/developer/6813889534) |

## What reviewers say

### Chemical structure Karuta

[App page](https://appshunter.io/ios/app/chemical-structure-karuta/id6504676483)

Learn chemical structures and compounds through a fun, card-based game. Features audio narration, explanatory videos, and adjustable CPU difficulty levels for solo practice or competitive play. Suitable for students, teachers, and chemistry enthusiasts.

**Highlights:** 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

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

**In-app purchases:** none


### BuzzQ

[App page](https://appshunter.io/ios/app/buzzq/id6813889532)

Engage in real-time English quiz battles against players worldwide or with friends. Master English vocabulary and grammar through interactive gameplay and review past questions to improve your skills. Customize your experience with collectible button designs.

**Highlights:** Online real-time quiz battles, Play with friends via room codes, Practice mode with selectable difficulty, Review questions with Japanese translations, Customize quiz buttons with collected coins, Daily login bonuses and missions

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemical structure Karuta free?

Chemical structure Karuta is free to download, with no in-app purchases.

### Is BuzzQ free?

BuzzQ is free to download, with no in-app purchases.

### Do Chemical structure Karuta or BuzzQ have ads?

Neither Chemical structure Karuta nor BuzzQ shows ads.

### Which is updated more often, Chemical structure Karuta or BuzzQ?

Chemical structure Karuta ships an update every 3 months, and BuzzQ every 3 days. Most recently, Chemical structure Karuta was updated on November 4, 2026 and BuzzQ on October 31, 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.*