# SEIRAKU vs Math Surface

The clearest difference is update cadence: Math Surface at weekly against SEIRAKU's monthly. SEIRAKU's advantage is iOS requirement (13.0 vs 26.2). 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.

SEIRAKU ships an update monthly, Math Surface weekly. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SEIRAKU | Math Surface |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **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

### SEIRAKU

[App page](https://appshunter.io/ios/app/seiraku/id6760764034)

**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 SEIRAKU free?

SEIRAKU 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 SEIRAKU or Math Surface have ads?

Both SEIRAKU and Math Surface show ads.

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

SEIRAKU ships an update monthly, and Math Surface weekly. Most recently, SEIRAKU 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.*