# Zahlenfeld vs KOMBI

The clearest difference is price: KOMBI at Free against Zahlenfeld's $0.99. KOMBI also leads on iOS requirement (11.0 vs 17.6). Zahlenfeld's advantage is update cadence (every 2 months vs every 5 months). On ads, in-app purchases and device support there is nothing between them.

KOMBI is free to download; Zahlenfeld costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Zahlenfeld ships an update every 2 months, KOMBI every 5 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Zahlenfeld | KOMBI |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 12 MB | 104 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Urff](https://appshunter.io/developer/415894463) | [Karina Hoeveler](https://appshunter.io/developer/1626071083) |

## What reviewers say

### Zahlenfeld

[App page](https://appshunter.io/ios/app/zahlenfeld/id1581386267)

This app is a mathematical tool designed to help children develop a deep understanding of structured quantities up to 1000. It visually represents numbers using place value concepts and a number line, aiding in the development of number sense and supporting children with learning difficulties.

**Highlights:** Visualizes numbers up to 1000, Place value representation (ones, tens, hundreds), Interactive number line, Supports understanding of quantities and number relationships, Aids children with dyscalculia, Customizable colors for place values

**Features:** macOS Compatibility

**In-app purchases:** none


### KOMBI

[App page](https://appshunter.io/ios/app/kombi/id1626071081)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zahlenfeld free?

Zahlenfeld costs $0.99, with no in-app purchases.

### Is KOMBI free?

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

### Do Zahlenfeld or KOMBI have ads?

Neither Zahlenfeld nor KOMBI shows ads.

### Which is updated more often, Zahlenfeld or KOMBI?

Zahlenfeld ships an update every 2 months, and KOMBI every 5 months. Most recently, Zahlenfeld was updated on November 3, 2026 and KOMBI on November 3, 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.*