# ブレインラン vs Sum Quest

The clearest difference is iOS requirement: Sum Quest at 11.0 against ブレインラン's 13.0. 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.

ブレインラン ships an update every 6 weeks, Sum Quest monthly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ブレインラン | Sum Quest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sum-quest/id1510348683/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | — | Ad-supported |
| Size | 136 MB | 125 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [FUKUROU](https://appshunter.io/developer/1603805098) | [ZERONE](https://appshunter.io/developer/1708775781) |

## What reviewers say

### ブレインラン

[App page](https://appshunter.io/ios/app/id1502789036)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ブレインラン free?

ブレインラン is free to download, with no in-app purchases.

### Is Sum Quest free?

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

### Do ブレインラン or Sum Quest have ads?

Both ブレインラン and Sum Quest show ads.

### Which is updated more often, ブレインラン or Sum Quest?

ブレインラン ships an update every 6 weeks, and Sum Quest monthly. Most recently, ブレインラン was updated on October 21, 2026 and Sum Quest on October 24, 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.*