# 数字あそび for 東方 vs 脳トレ！空港危機一髪

The clearest difference is update cadence: 脳トレ！空港危機一髪 at every 6 weeks against 数字あそび for 東方's every 103 months. 脳トレ！空港危機一髪 also leads on device support and iOS requirement (14.0 vs 16.4). On price and in-app purchases there is nothing between them.

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

数字あそび for 東方 ships an update every 103 months, 脳トレ！空港危機一髪 every 6 weeks. Both last shipped on October 21, 2026.

## The numbers

| Metric | 数字あそび for 東方 | 脳トレ！空港危機一髪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/for/id1108908667/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | Every 103 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 95 MB | 126 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 9+ | 17+ |
| Developer | [Michitaka Oyama](https://appshunter.io/developer/998448424) | [FUKUROU](https://appshunter.io/developer/1603805098) |

## What reviewers say

### 数字あそび for 東方

[App page](https://appshunter.io/ios/app/for/id1108908667)

A puzzle game where you merge numbers to create larger ones. Swipe to move all numbers on the screen, and when identical numbers collide, they combine into a doubled value. Clear stages by reaching the target number displayed.

**Highlights:** Number merging puzzle gameplay, Swipe to move numbers, Combine identical numbers for doubled values, Stage-based progression, Target number objectives, Multiple stages included

**In-app purchases:** none


### 脳トレ！空港危機一髪

[App page](https://appshunter.io/ios/app/id1561957451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 数字あそび for 東方 free?

数字あそび for 東方 is free to download, with no in-app purchases.

### Is 脳トレ！空港危機一髪 free?

脳トレ！空港危機一髪 is free to download, with no in-app purchases.

### Which is updated more often, 数字あそび for 東方 or 脳トレ！空港危機一髪?

数字あそび for 東方 ships an update every 103 months, and 脳トレ！空港危機一髪 every 6 weeks. Most recently, 数字あそび for 東方 was updated on October 21, 2026 and 脳トレ！空港危機一髪 on October 21, 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.*