# EFFZ vs Matek Oázis

The clearest difference is update cadence: EFFZ at every 2 days against Matek Oázis's every 3 weeks. EFFZ also leads on iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

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

EFFZ ships an update every 2 days, Matek Oázis every 3 weeks. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | EFFZ | Matek Oázis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/matek-oazis/id6746797066/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 13 MB | 63 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Petadev Solutions Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1660737022) | [Matek Oázis Kft.](https://appshunter.io/developer/1818560135) |

## What reviewers say

### EFFZ

[App page](https://appshunter.io/ios/app/effz/id6446033095)

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

**In-app purchases:** none


### Matek Oázis

[App page](https://appshunter.io/ios/app/matek-oazis/id6746797066)

This app supports parents in their child's math education by tracking progress, assigning tasks, and providing notifications. It helps establish a regular study routine and offers motivation through visible achievements.

**Highlights:** Track learning progress, Assign math tasks, Set study schedules, Receive progress notifications, Monitor achievements and motivation, View weekly results

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

**In-app purchases:** none


## Frequently asked questions

### Is EFFZ free?

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

### Is Matek Oázis free?

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

### Do EFFZ or Matek Oázis have ads?

Neither EFFZ nor Matek Oázis shows ads.

### Which is updated more often, EFFZ or Matek Oázis?

EFFZ ships an update every 2 days, and Matek Oázis every 3 weeks. Most recently, EFFZ was updated on October 4, 2026 and Matek Oázis on October 15, 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.*