# 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ vs 麻雀IQテスト

The clearest difference is in-app purchases: 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ at none against 麻雀IQテスト's 2. 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ also leads on review sentiment (41% vs 15%). 麻雀IQテスト's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 麻雀IQテスト sells 2 one-off in-app purchases. 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ asks for nothing beyond the download.

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ ships an update every 10 days, 麻雀IQテスト every 3 weeks. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ | 麻雀IQテスト |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/2iq/id1115273015/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **41.4% of reviews** | 15.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 12 MB | 107 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ikue Konno](https://appshunter.io/developer/971968281) | [Tomofumi Yamada](https://appshunter.io/developer/1480115678) |

## What reviewers say

### 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~

[App page](https://appshunter.io/ios/app/2iq/id1115273015)

A brain training app designed for adults to sharpen their minds with a variety of riddles. It offers 100 questions ranging from easy to challenging, perfect for passing the time and stimulating your intellect.

**Highlights:** Brain training for adults, 100 riddle questions, Varied difficulty levels, IQ and cipher quizzes, Time-killing entertainment

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

**In-app purchases:** none


### 麻雀IQテスト

[App page](https://appshunter.io/ios/app/iq/id1498792019)

Measure and train your Mahjong IQ with various modes focusing on hand waiting, scoring, and tile logic. Track your progress and compete on leaderboards.

**Highlights:** Mahjong IQ measurement, Hand waiting practice, Scoring calculation training, Tile logic challenges, Rankings and leaderboards, Radar chart progress visualization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IQテストの再試 | $0.99 | one-time |
| 広告非表示 | $2.99 | one-time |


## Frequently asked questions

### Is 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ free?

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ is free to download, with no in-app purchases.

### Is 麻雀IQテスト free?

麻雀IQテスト is free to download, with in-app purchases available.

### Do 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ or 麻雀IQテスト have ads?

Both 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ and 麻雀IQテスト show ads.

### Which is updated more often, 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ or 麻雀IQテスト?

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ ships an update every 10 days, and 麻雀IQテスト every 3 weeks. Most recently, 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ was updated on October 16, 2026 and 麻雀IQテスト on October 7, 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.*