# 高校数学 数I〜数C 解法の最初の一手 vs Sugoku

The clearest difference is ads: 高校数学 数I〜数C 解法の最初の一手 at none against Sugoku's shown. 高校数学 数I〜数C 解法の最初の一手 also leads on iOS requirement (15.0 vs 17.0). Sugoku's advantage is update cadence (every 3 days vs weekly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 高校数学 数I〜数C 解法の最初の一手 sells 1 one-off in-app purchase and Sugoku sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

高校数学 数I〜数C 解法の最初の一手 ships an update weekly, Sugoku every 3 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 高校数学 数I〜数C 解法の最初の一手 | Sugoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Size | 22 MB | 485 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gen Nakanishi](https://appshunter.io/developer/6782112814) | [ryo otsuka](https://appshunter.io/developer/6788628020) |

## What reviewers say

### 高校数学 数I〜数C 解法の最初の一手

[App page](https://appshunter.io/ios/app/ic/id6782112812)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全解放（すべての初手） | $4.99 | one-time |


### Sugoku

[App page](https://appshunter.io/ios/app/sugoku-math-practice-drills/id6788627418)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | one-time |


## Frequently asked questions

### Is 高校数学 数I〜数C 解法の最初の一手 free?

高校数学 数I〜数C 解法の最初の一手 is free to download, with in-app purchases available.

### Is Sugoku free?

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

### Do 高校数学 数I〜数C 解法の最初の一手 or Sugoku have ads?

Sugoku shows ads; 高校数学 数I〜数C 解法の最初の一手 does not.

### Which is updated more often, 高校数学 数I〜数C 解法の最初の一手 or Sugoku?

高校数学 数I〜数C 解法の最初の一手 ships an update weekly, and Sugoku every 3 days. Most recently, 高校数学 数I〜数C 解法の最初の一手 was updated on October 14, 2026 and Sugoku on October 16, 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.*