# 三角関数弧度法即答ゲーム vs Derivon

The clearest difference is update cadence: Derivon at every 5 days against 三角関数弧度法即答ゲーム's monthly. 三角関数弧度法即答ゲーム's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 三角関数弧度法即答ゲーム sells 4 one-off in-app purchases and Derivon sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

三角関数弧度法即答ゲーム ships an update monthly, Derivon every 5 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 三角関数弧度法即答ゲーム | Derivon |
| --- | --- | --- |
| 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 | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 437 MB | 206 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [blueskymathapp](https://appshunter.io/developer/1572394588) | [ABT合同会社](https://appshunter.io/developer/6813846553) |

## What reviewers say

### 三角関数弧度法即答ゲーム

[App page](https://appshunter.io/ios/app/id1670538143)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| お菓子 | $0.29 | one-time |
| ハンバーガーセット | $3.99 | one-time |
| ステーキ | $17.99 | one-time |
| 栄一さん | $59.99 | one-time |


### 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 (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Derivon Super (Monthly) | $1.99 | per month |
| Derivon Super (Yearly) | $14.99 | per year |
| 5 Star Fragments | $0.99 | one-time |
| 12 Star Fragments | $1.99 | one-time |
| 32 Star Fragments | $3.99 | one-time |


## Frequently asked questions

### Is 三角関数弧度法即答ゲーム free?

三角関数弧度法即答ゲーム is free to download, with in-app purchases available.

### Is Derivon free?

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

### Do 三角関数弧度法即答ゲーム or Derivon have ads?

Both 三角関数弧度法即答ゲーム and Derivon show ads.

### Which is updated more often, 三角関数弧度法即答ゲーム or Derivon?

三角関数弧度法即答ゲーム ships an update monthly, and Derivon every 5 days. Most recently, 三角関数弧度法即答ゲーム was updated on October 27, 2026 and Derivon on October 28, 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.*