# Stolper App vs Blitzlesen Klett

The clearest difference is in-app purchases: Stolper App at none against Blitzlesen Klett's 2. Stolper App also leads on update cadence (every 3 days vs every 8 months). Blitzlesen Klett's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Blitzlesen Klett sells 2 one-off in-app purchases. Stolper App asks for nothing beyond the download.

Stolper App ships an update every 3 days, Blitzlesen Klett every 8 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Stolper App | Blitzlesen Klett |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 8 months |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 107 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Florian Zindel](https://appshunter.io/developer/1233983485) | [Ernst Klett Verlag GmbH, Stuttgart](https://appshunter.io/developer/751540887) |

## What reviewers say

### Stolper App

[App page](https://appshunter.io/ios/app/stolper-app/id1233983486)

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

**In-app purchases:** none


### Blitzlesen Klett

[App page](https://appshunter.io/ios/app/blitzlesen-klett/id6739304522)

This app helps elementary school children improve their reading fluency and build confidence with targeted vocabulary exercises. It offers various game-like tasks and tests, with progress tracking for parents and teachers. Content can be expanded with in-app purchases.

**Highlights:** Targeted vocabulary practice, Varied task types (Bingo, Sudoku, word finding), Adjustable difficulty levels, Customizable test times, Progress tracking for parents/teachers, Self-assessment tests

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blitzlesen Klasse 3 | $0.99 | one-time |
| Blitzlesen Klasse 1-2 | $0.99 | one-time |


## Frequently asked questions

### Is Stolper App free?

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

### Is Blitzlesen Klett free?

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

### Do Stolper App or Blitzlesen Klett have ads?

Neither Stolper App nor Blitzlesen Klett shows ads.

### Which is updated more often, Stolper App or Blitzlesen Klett?

Stolper App ships an update every 3 days, and Blitzlesen Klett every 8 months. Most recently, Stolper App was updated on October 29, 2026 and Blitzlesen Klett on October 21, 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.*