# 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ vs 名探偵からの挑戦状－謎解きIQ診断アプリ

The clearest difference is rating: 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ at 4.5 against 名探偵からの挑戦状－謎解きIQ診断アプリ's 3.4. 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ also leads on update cadence (every 10 days vs monthly). 名探偵からの挑戦状－謎解きIQ診断アプリ's advantage is ads (none vs shown) and review sentiment (71% vs 41%). On price, in-app purchases and device support there is nothing between them.

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

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ holds the better App Store score, 4.5 against 3.4. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews complicate that: 41% of 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~'s written reviews are positive against 71% of 名探偵からの挑戦状－謎解きIQ診断アプリ's, so the app with the better star average is not the one people write more warmly about.

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, 名探偵からの挑戦状－謎解きIQ診断アプリ monthly. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ | 名探偵からの挑戦状－謎解きIQ診断アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/2iq/id1115273015/reviews)** | [3.4 (7 ratings)](https://appshunter.io/ios/app/iq/id1378838547/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | 41.4% of reviews | **70.9% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Ad-supported | **Free** |
| Size | 12 MB | 234 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ikue Konno](https://appshunter.io/developer/971968281) | [MIKU KURAKI](https://appshunter.io/developer/1161306102) |

## 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


### 名探偵からの挑戦状－謎解きIQ診断アプリ

[App page](https://appshunter.io/ios/app/iq/id1378838547)

Test your deductive reasoning and problem-solving skills with challenging riddles. Uncover the truth by thinking creatively and logically. Aim to become a detective by solving numerous puzzles.

**Highlights:** Challenging riddles, Deductive reasoning tests, IQ diagnostics, Creative thinking puzzles, Mystery and deduction challenges, Earn Rakuten Super Points

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 名探偵からの挑戦状－謎解きIQ診断アプリ free?

名探偵からの挑戦状－謎解きIQ診断アプリ is free to download, with no in-app purchases.

### Which has better reviews, 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ or 名探偵からの挑戦状－謎解きIQ診断アプリ?

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ is rated higher. 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ averages 4.5 out of 5 from 2 ratings, while 名探偵からの挑戦状－謎解きIQ診断アプリ averages 3.4 from 7 ratings.

### Do 大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ or 名探偵からの挑戦状－謎解きIQ診断アプリ have ads?

大人のなぞなぞ 2~暇つぶし脳トレIQアプリ~ shows ads; 名探偵からの挑戦状－謎解きIQ診断アプリ does not.

### 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 名探偵からの挑戦状－謎解きIQ診断アプリ?

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 名探偵からの挑戦状－謎解きIQ診断アプリ monthly. 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 名探偵からの挑戦状－謎解きIQ診断アプリ on October 20, 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.*