# Rechentrainer vs Keijaoh Tutorials

The clearest difference is update cadence: Rechentrainer at every 2 months against Keijaoh Tutorials's every 6 months. Rechentrainer also leads on iOS requirement (14.2 vs 17.0). On price, ads, in-app purchases and monetization model 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, Keijaoh Tutorials every 6 months. The most recent releases landed on June 4, 2026 and June 12, 2026 respectively.

## The numbers

| Metric | Rechentrainer | Keijaoh Tutorials |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keijaoh-tutorials/id1610343608/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 7 MB | 11 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Nicolai Kummer](https://appshunter.io/developer/1497635656) | [Keijaoh Campbell](https://appshunter.io/developer/1528857942) |

## 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


### Keijaoh Tutorials

[App page](https://appshunter.io/ios/app/keijaoh-tutorials/id1610343608)

Access expert tutorials on programming, math, and business. Explore insightful blogs and academic discussions to deepen your understanding and stay current with your chosen fields. This app offers a comprehensive platform for continuous learning and personal growth.

**Highlights:** Expert tutorials on Swift and SwiftUI, Backend technology guidance, Calculus lessons, Business and Computer Science blogs, Discussions on academic papers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rechentrainer free?

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

### Is Keijaoh Tutorials free?

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

### Do Rechentrainer or Keijaoh Tutorials have ads?

Neither Rechentrainer nor Keijaoh Tutorials shows ads.

### Which is updated more often, Rechentrainer or Keijaoh Tutorials?

Rechentrainer ships an update every 2 months, and Keijaoh Tutorials every 6 months. Most recently, Rechentrainer was updated on June 4, 2026 and Keijaoh Tutorials on June 12, 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.*