# Area Quiz vs 暗号機

The clearest difference is in-app purchases: 暗号機 at none against Area Quiz's 2. 暗号機 also leads on update cadence (every 5 days vs every 5 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Area Quiz sells 2 one-off in-app purchases. 暗号機 asks for nothing beyond the download.

Area Quiz ships an update every 5 months, 暗号機 every 5 days. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Area Quiz | 暗号機 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/area-quiz-geometry-problems/id1003534704/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 63.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 50 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wasabi Applications](https://appshunter.io/developer/643579130) | [takayuki atsumi](https://appshunter.io/developer/1495474977) |

## What reviewers say

### Area Quiz

[App page](https://appshunter.io/ios/app/area-quiz-geometry-problems/id1003534704)

This math quiz app offers geometry puzzles and brain teasers with five difficulty levels. It helps improve logic, IQ, and mental math skills through engaging challenges. Draw notes, use hints, and share progress while enjoying offline play.

**Highlights:** Five difficulty levels, Unlock levels by solving, Draw notes on screen, Hints available, Offline play, Share progress

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Hints | $0.99 | one-time |
| Ads Free | $1.99 | one-time |


### 暗号機

[App page](https://appshunter.io/ios/app/enigmen/id6445862445)

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

**In-app purchases:** none


## Frequently asked questions

### Is Area Quiz free?

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

### Is 暗号機 free?

暗号機 is free to download, with no in-app purchases.

### Do Area Quiz or 暗号機 have ads?

Both Area Quiz and 暗号機 show ads.

### Which is updated more often, Area Quiz or 暗号機?

Area Quiz ships an update every 5 months, and 暗号機 every 5 days. Most recently, Area Quiz was updated on October 17, 2026 and 暗号機 on October 11, 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.*