# Rechentrainer vs EPO Data Hub

The clearest difference is iOS requirement: Rechentrainer at 14.2 against EPO Data Hub's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Rechentrainer ships an update every 2 months, EPO Data Hub every 6 weeks. The most recent releases landed on October 9, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Rechentrainer | EPO Data Hub |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 41 MB |
| Requires iOS | **14.2** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nicolai Kummer](https://appshunter.io/developer/1497635656) | [Europaeisches Patentamt](https://appshunter.io/developer/1568450057) |

## What reviewers say

### Rechentrainer

[App page](https://appshunter.io/ios/app/rechentrainer/id1497635657)

This app offers personalized math practice for all ages, covering addition, subtraction, multiplication, and division. It features customizable difficulty levels, motivational rewards, and progress tracking to make learning enjoyable and effective.

**Highlights:** Personalized arithmetic practice, Customizable difficulty levels, Motivational reward system, Learning progress tracking, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases:** none


### EPO Data Hub

[App page](https://appshunter.io/ios/app/epo-data-hub/id1568450055)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rechentrainer free?

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

### Is EPO Data Hub free?

EPO Data Hub is free to download, with no in-app purchases.

### Do Rechentrainer or EPO Data Hub have ads?

Neither Rechentrainer nor EPO Data Hub shows ads.

### Which is updated more often, Rechentrainer or EPO Data Hub?

Rechentrainer ships an update every 2 months, and EPO Data Hub every 6 weeks. Most recently, Rechentrainer was updated on October 9, 2026 and EPO Data Hub on September 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.*