# FX高校数学問題の解決機 vs Derivon

The clearest difference is review sentiment: FX高校数学問題の解決機 at 44% against Derivon's 0%. FX高校数学問題の解決機 also leads on in-app purchases (none vs 3) and ads (none vs shown). Derivon's advantage is update cadence (every 4 days vs every 3 months). On price and monetization model there is nothing between them.

Both are free to download. Derivon sells 3 one-off in-app purchases. FX高校数学問題の解決機 asks for nothing beyond the download.

FX高校数学問題の解決機 ships an update every 3 months, Derivon every 4 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FX高校数学問題の解決機 | 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 | **44.2% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 51 MB | 182 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Euclidus Inc](https://appshunter.io/developer/490623202) | [ABT合同会社](https://appshunter.io/developer/6813846553) |

## What reviewers say

### FX高校数学問題の解決機

[App page](https://appshunter.io/ios/app/fx/id1059257005)

This AI-powered tool assists high school students with math problems by providing step-by-step solutions and animated explanations. It offers over 1500 practice problems across various math topics to aid in self-study and exam preparation.

**Highlights:** AI-powered problem solving, Animated step-by-step solutions, Extensive practice problem library, Covers diverse math topics, Supports self-study and exam prep

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is FX高校数学問題の解決機 free?

FX高校数学問題の解決機 is free to download, with no in-app purchases.

### Is Derivon free?

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

### Do FX高校数学問題の解決機 or Derivon have ads?

Derivon shows ads; FX高校数学問題の解決機 does not.

### Which is updated more often, FX高校数学問題の解決機 or Derivon?

FX高校数学問題の解決機 ships an update every 3 months, and Derivon every 4 days. Most recently, FX高校数学問題の解決機 was updated on October 15, 2026 and Derivon on October 7, 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.*