# Sum Quest vs 脳トレ！空港危機一髪

The clearest difference is iOS requirement: Sum Quest at 11.0 against 脳トレ！空港危機一髪's 14.0. On price, update cadence, ads 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.

Sum Quest ships an update monthly, 脳トレ！空港危機一髪 every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Sum Quest | 脳トレ！空港危機一髪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sum-quest/id1510348683/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Ad-supported | — |
| Size | 125 MB | 126 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [FUKUROU](https://appshunter.io/developer/1603805098) |

## What reviewers say

### Sum Quest

[App page](https://appshunter.io/ios/app/sum-quest/id1510348683)

Embark on an adventure to train your calculation skills with this engaging brain-training game. Simple tap-based gameplay helps diagnose your brain age and activates your mind the more you play.

**Highlights:** Calculation skill training, Brain age diagnosis, Simple tap controls, Engaging gameplay, Mind activation

**Features:** macOS Compatibility

**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 Sum Quest free?

Sum Quest 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.

### Do Sum Quest or 脳トレ！空港危機一髪 have ads?

Both Sum Quest and 脳トレ！空港危機一髪 show ads.

### Which is updated more often, Sum Quest or 脳トレ！空港危機一髪?

Sum Quest ships an update monthly, and 脳トレ！空港危機一髪 every 6 weeks. Most recently, Sum Quest was updated on November 3, 2026 and 脳トレ！空港危機一髪 on November 3, 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.*