# QuizBuzzerX vs 脳速算

The clearest difference is in-app purchases: 脳速算 at none against QuizBuzzerX's 2. 脳速算 also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). QuizBuzzerX's advantage is update cadence (weekly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. QuizBuzzerX sells 2 one-off in-app purchases. 脳速算 asks for nothing beyond the download.

QuizBuzzerX ships an update weekly, 脳速算 every 5 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | QuizBuzzerX | 脳速算 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 43 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yoshitaka Tanaka](https://appshunter.io/developer/1510093015) | [Tatsuya Kawai](https://appshunter.io/developer/1788260421) |

## What reviewers say

### QuizBuzzerX

[App page](https://appshunter.io/ios/app/quizbuzzerx/id6458743157)

Transform a single device into a group quiz buzzer and scorekeeper. A host reads questions, players buzz in, and answers are marked right or wrong. The app displays the pressing order and keeps score on the same screen.

**Highlights:** Single device quiz buzzer, Host reads questions, Player buzz-in functionality, Mark answers right/wrong, Display pressing order, Scorekeeping, Customizable player numbers

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 初級・中級者向けの早押し問題集400問 | $0.49 | one-time |
| QuizBuzzer Plus | $4.99 | one-time |


### 脳速算

[App page](https://appshunter.io/ios/app/id6742348087)

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

**In-app purchases:** none


## Frequently asked questions

### Is QuizBuzzerX free?

QuizBuzzerX is free to download, with in-app purchases available.

### Is 脳速算 free?

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

### Do QuizBuzzerX or 脳速算 have ads?

QuizBuzzerX shows ads; 脳速算 does not.

### Which is updated more often, QuizBuzzerX or 脳速算?

QuizBuzzerX ships an update weekly, and 脳速算 every 5 months. Most recently, QuizBuzzerX was updated on November 7, 2026 and 脳速算 on November 8, 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.*