# Lexico Kasus vs PreNumbers

The clearest difference is update cadence: Lexico Kasus at every 2 months against PreNumbers's every 8 months. PreNumbers's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Lexico Kasus sells 1 one-off in-app purchase and PreNumbers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Lexico Kasus ships an update every 2 months, PreNumbers every 8 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lexico Kasus | PreNumbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lexico-kasus/id622584241/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 42 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pappy GmbH](https://appshunter.io/developer/461368271) | [IntegraTools GmbH](https://appshunter.io/developer/618103816) |

## What reviewers say

### Lexico Kasus

[App page](https://appshunter.io/ios/app/lexico-kasus/id622584241)

This app helps users practice German grammar, specifically focusing on noun cases. It offers interactive exercises with visual, textual, or audio prompts, covering a wide range of topics. Results can be tracked and shared, making it useful for therapy, language learning, and home practice.

**Highlights:** Practice German noun cases, Interactive exercises with W-questions, Visual, text, or audio prompts, 480 questions across 9 themes, Logbook for tracking results, Developed with speech therapists and educators

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock all levels | $24.99 | one-time |


### PreNumbers

[App page](https://appshunter.io/ios/app/prenumbers/id1142502437)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All exercises | $44.99 | one-time |


## Frequently asked questions

### Is Lexico Kasus free?

Lexico Kasus is free to download, with in-app purchases available.

### Is PreNumbers free?

PreNumbers is free to download, with in-app purchases available.

### Do Lexico Kasus or PreNumbers have ads?

Neither Lexico Kasus nor PreNumbers shows ads.

### Which is updated more often, Lexico Kasus or PreNumbers?

Lexico Kasus ships an update every 2 months, and PreNumbers every 8 months. Most recently, Lexico Kasus was updated on November 1, 2026 and PreNumbers on October 24, 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.*