# 四字熟語クイズ vs 常識力診断 一般常識クイズ

The clearest difference is review sentiment: 四字熟語クイズ at 88% against 常識力診断 一般常識クイズ's 17%. 四字熟語クイズ also leads on rating (4.5 vs 1.0) and ratings volume (20 vs 1). 常識力診断 一般常識クイズ's advantage is update cadence (fortnightly vs every 9 months) and monetization model (ad-supported vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 四字熟語クイズ sells 1 in-app purchase, starting at $1.99 per month and 常識力診断 一般常識クイズ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

四字熟語クイズ holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: 四字熟語クイズ has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of 四字熟語クイズ's written reviews are positive against 17% of 常識力診断 一般常識クイズ's.

四字熟語クイズ ships an update every 9 months, 常識力診断 一般常識クイズ fortnightly. Both last shipped on November 6, 2026.

## The numbers

| Metric | 四字熟語クイズ | 常識力診断 一般常識クイズ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (20 ratings)](https://appshunter.io/ios/app/id440653555/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1426325847/reviews) |
| Number of ratings | **20** | 1 |
| Positive reviews | **88.5% of reviews** | 17.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 44 MB | 155 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [StudySwitch, Inc.](https://appshunter.io/developer/1368900403) | [YANASE GAMES, INC.](https://appshunter.io/developer/1426325846) |

## What reviewers say

### 四字熟語クイズ

[App page](https://appshunter.io/ios/app/id440653555)

Test your knowledge of Japanese four-character idioms with this quiz app. It features 137 idioms categorized by theme, perfect for learning and reinforcing general knowledge. Enjoy a popular and educational experience.

**Highlights:** 137 four-character idioms, Themed categories, General knowledge enhancement, Popular app, Free to play, Optional ad-free plan

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 学習集中プラン | $1.99 | per month |


### 常識力診断 一般常識クイズ

[App page](https://appshunter.io/ios/app/id1426325847)

Test your general knowledge with a quiz covering literature, history, science, and more. Aim for a perfect score of 50 consecutive correct answers to prove your mastery. Perfect for study breaks, brain training, or just expanding your trivia.

**Highlights:** Extensive question bank (300+), Covers diverse subjects, Aim for 50 consecutive correct answers, Brain training and trivia expansion, Free to play

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示・フルアップデート | $2.99 | one-time |


## Frequently asked questions

### Is 四字熟語クイズ free?

四字熟語クイズ is free to download, with in-app purchases available.

### Is 常識力診断 一般常識クイズ free?

常識力診断 一般常識クイズ is free to download, with in-app purchases available.

### Which has better reviews, 四字熟語クイズ or 常識力診断 一般常識クイズ?

四字熟語クイズ is rated higher. 四字熟語クイズ averages 4.5 out of 5 from 20 ratings, while 常識力診断 一般常識クイズ averages 1.0 from 1 ratings.

### Do 四字熟語クイズ or 常識力診断 一般常識クイズ have ads?

Both 四字熟語クイズ and 常識力診断 一般常識クイズ show ads.

### Which is updated more often, 四字熟語クイズ or 常識力診断 一般常識クイズ?

四字熟語クイズ ships an update every 9 months, and 常識力診断 一般常識クイズ fortnightly. Most recently, 四字熟語クイズ was updated on November 6, 2026 and 常識力診断 一般常識クイズ on November 6, 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.*