# Derivon vs 高校数学 数I〜数C 解法の最初の一手

The clearest difference is ads: 高校数学 数I〜数C 解法の最初の一手 at none against Derivon's shown. 高校数学 数I〜数C 解法の最初の一手 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Derivon sells 3 one-off in-app purchases and 高校数学 数I〜数C 解法の最初の一手 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Derivon ships an update every 4 days, 高校数学 数I〜数C 解法の最初の一手 weekly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Derivon | 高校数学 数I〜数C 解法の最初の一手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/derivon-calculus-practice/id6761150220/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 182 MB | 22 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ABT合同会社](https://appshunter.io/developer/6813846553) | [Gen Nakanishi](https://appshunter.io/developer/6782112814) |

## What reviewers say

### Derivon

[App page](https://appshunter.io/ios/app/derivon-calculus-practice/id6761150220)

Master calculus concepts like derivatives and integrals through daily, intuitive practice. Earn rewards, collect planets, and build streaks as you progress through challenges. Designed for quick, effective learning sessions.

**Highlights:** Daily calculus problem practice, Earn Star Sand rewards, Collect planets in Gallery, Build and maintain daily streaks, Rank-Up Challenges, Shooting mode for breaks

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Star Fragments | $0.99 | one-time |
| 12 Star Fragments | $1.99 | one-time |
| 32 Star Fragments | $3.99 | one-time |


### 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 |


## Frequently asked questions

### Is Derivon free?

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

### 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.

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

Derivon 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, Derivon or 高校数学 数I〜数C 解法の最初の一手?

Derivon ships an update every 4 days, and 高校数学 数I〜数C 解法の最初の一手 weekly. Most recently, Derivon was updated on October 7, 2026 and 高校数学 数I〜数C 解法の最初の一手 on October 14, 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.*