# ぐらぐら島 vs Quick Math Break

The clearest difference is update cadence: Quick Math Break at monthly against ぐらぐら島's every 4 months. ぐらぐら島's advantage is iOS requirement (11.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

ぐらぐら島 ships an update every 4 months, Quick Math Break monthly. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ぐらぐら島 | Quick Math Break |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Monthly** |
| Size | 194 MB | 5 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [Kana Uchida](https://appshunter.io/developer/1819475901) |

## What reviewers say

### ぐらぐら島

[App page](https://appshunter.io/ios/app/id1521230535)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quick Math Break

[App page](https://appshunter.io/ios/app/quick-math-break/id6752902647)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ぐらぐら島 free?

ぐらぐら島 is free to download, with no in-app purchases.

### Is Quick Math Break free?

Quick Math Break is free to download, with no in-app purchases.

### Do ぐらぐら島 or Quick Math Break have ads?

Both ぐらぐら島 and Quick Math Break show ads.

### Which is updated more often, ぐらぐら島 or Quick Math Break?

ぐらぐら島 ships an update every 4 months, and Quick Math Break monthly. Most recently, ぐらぐら島 was updated on September 17, 2026 and Quick Math Break on September 27, 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.*