# finding J vs Rechentrainer

The clearest difference is iOS requirement: finding J at 8.0 against Rechentrainer's 14.2. 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.

## The numbers

| Metric | finding J | Rechentrainer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free |
| Size | 15 MB | 7 MB |
| Requires iOS | **8.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lutz Neumeier](https://appshunter.io/developer/980941641) | [Nicolai Kummer](https://appshunter.io/developer/1497635656) |

## What reviewers say

### finding J

[App page](https://appshunter.io/ios/app/finding-j/id1277057274)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is finding J free?

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

### Is Rechentrainer free?

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

### Do finding J or Rechentrainer have ads?

Neither finding J nor Rechentrainer shows ads.

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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.*