# Maffs vs Derivon

The clearest difference is in-app purchases: Maffs at none against Derivon's 5. Maffs also leads on ads (none vs shown) and iOS requirement (15.1 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Derivon sells 5 in-app purchases, starting at $1.99 per month. Maffs asks for nothing beyond the download.

## The numbers

| Metric | Maffs | 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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 206 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Prospre Nutrition Inc.](https://appshunter.io/developer/1464400656) | [ABT合同会社](https://appshunter.io/developer/6813846553) |

## What reviewers say

### Maffs

[App page](https://appshunter.io/ios/app/maffs-calculus-practice/id6759699583)

**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 (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 Maffs free?

Maffs is free to download, with no in-app purchases.

### Is Derivon free?

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

### Do Maffs or Derivon have ads?

Derivon shows ads; Maffs does not.

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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.*