# Rechenkönig vs Math Kobold

The clearest difference is update cadence: Math Kobold at monthly against Rechenkönig's every 39 months. Rechenkönig's advantage is price ($1.99 vs $3.99) and iOS requirement (12.0 vs 16). On ads, in-app purchases and device support there is nothing between them.

Rechenkönig costs $1.99 and Math Kobold $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rechenkönig ships an update every 39 months, Math Kobold monthly. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Rechenkönig | Math Kobold |
| --- | --- | --- |
| Price | **$1.99** | $3.99 |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Monthly** |
| Monetization | — | Paid |
| Size | 10 MB | 141 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dr. Peter Schmidt](https://appshunter.io/developer/479165203) | [Klebert Engineering](https://appshunter.io/developer/1536143644) |

## What reviewers say

### Rechenkönig

[App page](https://appshunter.io/ios/app/rechenkonig/id494234897)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Kobold

[App page](https://appshunter.io/ios/app/math-kobold-learning-game/id1536143642)

Practice mental arithmetic with a fun, step-by-step game. Solve math problems to progress through levels, defeat opponents, and earn rewards. Supports addition, subtraction, multiplication, and division with adjustable difficulty.

**Highlights:** Step-by-step mental arithmetic training, Addition, subtraction, multiplication, division practice, Adjustable number ranges and difficulty levels, Reward system with stars and gold chests, Adaptive problem generator, Engaging gameplay with opponents and music

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rechenkönig free?

Rechenkönig costs $1.99, with no in-app purchases.

### Is Math Kobold free?

Math Kobold costs $3.99, with no in-app purchases.

### Do Rechenkönig or Math Kobold have ads?

Neither Rechenkönig nor Math Kobold shows ads.

### Which is updated more often, Rechenkönig or Math Kobold?

Rechenkönig ships an update every 39 months, and Math Kobold monthly. Most recently, Rechenkönig was updated on October 17, 2026 and Math Kobold on October 7, 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.*