# Preu Mat21 vs Eduken

The clearest difference is update cadence: Eduken at every 3 days against Preu Mat21's every 7 months. Preu Mat21's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Preu Mat21 ships an update every 7 months, Eduken every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Preu Mat21 | Eduken |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Size | 1 MB | 6 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Enrique Szyfer](https://appshunter.io/developer/1653128774) | [GCTechnologies SpA](https://appshunter.io/developer/1710451112) |

## What reviewers say

### Preu Mat21

[App page](https://appshunter.io/ios/app/preu-mat21/id6444215165)

**Features:** macOS Compatibility

**In-app purchases:** none


### Eduken

[App page](https://appshunter.io/ios/app/eduken/id6796316446)

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

**In-app purchases:** none


## Frequently asked questions

### Is Preu Mat21 free?

Preu Mat21 is free to download, with no in-app purchases.

### Is Eduken free?

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

### Do Preu Mat21 or Eduken have ads?

Neither Preu Mat21 nor Eduken shows ads.

### Which is updated more often, Preu Mat21 or Eduken?

Preu Mat21 ships an update every 7 months, and Eduken every 3 days. Most recently, Preu Mat21 was updated on November 3, 2026 and Eduken on October 31, 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.*