# KAKURAKU vs Math Surface

The clearest difference is iOS requirement: KAKURAKU at 13.0 against Math Surface's 26.2. 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.

KAKURAKU ships an update every 2 weeks, Math Surface weekly. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | KAKURAKU | Math Surface |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 24 MB | 10 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### KAKURAKU

[App page](https://appshunter.io/ios/app/kakuraku/id6761617812)

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

**In-app purchases:** none


### Math Surface

[App page](https://appshunter.io/ios/app/math-surface/id6774883910)

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

**In-app purchases:** none


## Frequently asked questions

### Is KAKURAKU free?

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

### Is Math Surface free?

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

### Do KAKURAKU or Math Surface have ads?

Both KAKURAKU and Math Surface show ads.

### Which is updated more often, KAKURAKU or Math Surface?

KAKURAKU ships an update every 2 weeks, and Math Surface weekly. Most recently, KAKURAKU was updated on September 10, 2026 and Math Surface on September 22, 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.*