# Sugaku vs 高校数学

The clearest difference is in-app purchases: 高校数学 at none against Sugaku's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sugaku sells 1 one-off in-app purchase. 高校数学 asks for nothing beyond the download.

Sugaku ships an update every 2 weeks, 高校数学 every 11 days. The most recent releases landed on October 13, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Sugaku | 高校数学 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 52.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Size | 59 MB | 45 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sae Ueno](https://appshunter.io/developer/1598709865) | [郷 田村](https://appshunter.io/developer/1574588679) |

## What reviewers say

### Sugaku

[App page](https://appshunter.io/ios/app/sugaku21/id1615551272)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.99 | one-time |


### 高校数学

[App page](https://appshunter.io/ios/app/id6450528035)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sugaku free?

Sugaku is free to download, with in-app purchases available.

### Is 高校数学 free?

高校数学 is free to download, with no in-app purchases.

### Do Sugaku or 高校数学 have ads?

Neither Sugaku nor 高校数学 shows ads.

### Which is updated more often, Sugaku or 高校数学?

Sugaku ships an update every 2 weeks, and 高校数学 every 11 days. Most recently, Sugaku was updated on October 13, 2026 and 高校数学 on October 23, 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.*