# コドモアルゴリズム vs ArrayQuest

The clearest difference is price: ArrayQuest at Free against コドモアルゴリズム's $2.99. ArrayQuest also leads on update cadence (daily vs monthly) and iOS requirement (12.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

ArrayQuest is free to download; コドモアルゴリズム costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

コドモアルゴリズム ships an update monthly, ArrayQuest daily. The most recent releases landed on July 25, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | コドモアルゴリズム | ArrayQuest |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 80 MB | 31 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takatoshi Fukino](https://appshunter.io/developer/789538982) | [Applane](https://appshunter.io/developer/1836848119) |

## What reviewers say

### コドモアルゴリズム

[App page](https://appshunter.io/ios/app/id1065522987)

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

**In-app purchases:** none


### ArrayQuest

[App page](https://appshunter.io/ios/app/arrayquest-algorithm-puzzle/id6769298227)

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

**In-app purchases:** none


## Frequently asked questions

### Is コドモアルゴリズム free?

コドモアルゴリズム costs $2.99, with no in-app purchases.

### Is ArrayQuest free?

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

### Do コドモアルゴリズム or ArrayQuest have ads?

Neither コドモアルゴリズム nor ArrayQuest shows ads.

### Which is updated more often, コドモアルゴリズム or ArrayQuest?

コドモアルゴリズム ships an update monthly, and ArrayQuest daily. Most recently, コドモアルゴリズム was updated on July 25, 2026 and ArrayQuest on September 8, 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.*