# 大人のなぞなぞ~脳トレIQ謎解きアプリ~ vs Intro King

The clearest difference is rating: Intro King at 5.0 against 大人のなぞなぞ~脳トレIQ謎解きアプリ~'s 4.3. Intro King also leads on update cadence (every 9 days vs every 6 weeks). 大人のなぞなぞ~脳トレIQ謎解きアプリ~'s advantage is in-app purchases (none vs 1) and ratings volume (26 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Intro King sells 1 in-app purchase, starting at $1.99 per month. 大人のなぞなぞ~脳トレIQ謎解きアプリ~ asks for nothing beyond the download.

Intro King holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: 大人のなぞなぞ~脳トレIQ謎解きアプリ~ has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 57% of 大人のなぞなぞ~脳トレIQ謎解きアプリ~'s written reviews are positive against 43% of Intro King'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~脳トレIQ謎解きアプリ~ ships an update every 6 weeks, Intro King every 9 days. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 大人のなぞなぞ~脳トレIQ謎解きアプリ~ | Intro King |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (26 ratings)](https://appshunter.io/ios/app/iq/id1090289889/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intro-king/id6449006748/reviews)** |
| Number of ratings | **26** | 1 |
| Positive reviews | **56.7% of reviews** | 43.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 24 MB | 56 MB |
| Requires iOS | **14** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Ikue Konno](https://appshunter.io/developer/971968281) | [Yutaka Kato](https://appshunter.io/developer/1674092270) |

## What reviewers say

### 大人のなぞなぞ~脳トレIQ謎解きアプリ~

[App page](https://appshunter.io/ios/app/iq/id1090289889)

This brain-training app offers 100 riddles and IQ puzzles for adults. It features a wide range of difficulty levels, from easy to challenging, making it a fun way to keep your mind sharp. Perfect for those who enjoy puzzles and need a way to pass the time.

**Highlights:** Brain training for adults, 100 riddle and IQ quiz questions, Varied difficulty levels, Suitable for all ages, Ideal for passing time

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

**In-app purchases:** none


### Intro King

[App page](https://appshunter.io/ios/app/intro-king/id6449006748)

Test your music knowledge with this interactive intro quiz game. Play solo modes like Time Attack or Score Challenge, or compete with friends in real-time online battles or local party modes. Create custom playlists from your favorite songs or use pre-made ones.

**Highlights:** Intro quiz gameplay, Multiple game modes (Time Attack, Score Challenge, Remote Match, Party Mode), Real-time online battles, Local multiplayer for up to 6 players, Customizable song playlists, Apple Music integration (for subscribers)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Plan | $1.99 | per month |


## Frequently asked questions

### Is 大人のなぞなぞ~脳トレIQ謎解きアプリ~ free?

大人のなぞなぞ~脳トレIQ謎解きアプリ~ is free to download, with no in-app purchases.

### Is Intro King free?

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

### Which has better reviews, 大人のなぞなぞ~脳トレIQ謎解きアプリ~ or Intro King?

Intro King is rated higher. 大人のなぞなぞ~脳トレIQ謎解きアプリ~ averages 4.3 out of 5 from 26 ratings, while Intro King averages 5.0 from 1 ratings.

### Do 大人のなぞなぞ~脳トレIQ謎解きアプリ~ or Intro King have ads?

Both 大人のなぞなぞ~脳トレIQ謎解きアプリ~ and Intro King show ads.

### Which is updated more often, 大人のなぞなぞ~脳トレIQ謎解きアプリ~ or Intro King?

大人のなぞなぞ~脳トレIQ謎解きアプリ~ ships an update every 6 weeks, and Intro King every 9 days. Most recently, 大人のなぞなぞ~脳トレIQ謎解きアプリ~ was updated on October 18, 2026 and Intro King on October 17, 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.*