# KIKS chat vs Blitzrechnen

The clearest difference is in-app purchases: KIKS chat at none against Blitzrechnen's 4. KIKS chat also leads on update cadence (fortnightly vs every 3 months) and review sentiment (33% vs 19%). Blitzrechnen's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Blitzrechnen sells 4 one-off in-app purchases. KIKS chat asks for nothing beyond the download.

KIKS chat ships an update fortnightly, Blitzrechnen every 3 months. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | KIKS chat | Blitzrechnen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/kiks-chat/id1459862898/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **33.3% of reviews** | 18.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 114 MB | 196 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stashcat GmbH](https://appshunter.io/developer/1010707525) | [Ernst Klett Verlag GmbH, Stuttgart](https://appshunter.io/developer/751540887) |

## What reviewers say

### KIKS chat

[App page](https://appshunter.io/ios/app/kiks-chat/id1459862898)

This secure, GDPR-compliant platform facilitates efficient communication for schools. It combines standard chat features with cloud storage, organized through channels and direct messaging for seamless interaction among all participants.

**Highlights:** GDPR compliant communication, Secure cloud storage integration, Organized communication via #Channels, Direct and group chat functionality, Data protection compliant platform

**Features:** Vision Pro support

**In-app purchases:** none


### Blitzrechnen

[App page](https://appshunter.io/ios/app/blitzrechnen/id6444187170)

Practice math skills for grades 1-4 with adaptive exercises. Learn independently through engaging, game-like activities that reinforce concepts and build confidence. Offline access ensures continuous learning at home or in the classroom.

**Highlights:** Adaptive exercises for grades 1-4, Multiple difficulty levels, Self-assessment tests, Progress tracking for parents/teachers, Offline functionality, Engaging animations

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Klasse 1 | $2.99 | one-time |
| Blitzrechnen 4 | $2.99 | one-time |
| Klasse 2 | $2.99 | one-time |
| Klasse 3 | $2.99 | one-time |


## Frequently asked questions

### Is KIKS chat free?

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

### Is Blitzrechnen free?

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

### Do KIKS chat or Blitzrechnen have ads?

Neither KIKS chat nor Blitzrechnen shows ads.

### Which is updated more often, KIKS chat or Blitzrechnen?

KIKS chat ships an update fortnightly, and Blitzrechnen every 3 months. Most recently, KIKS chat was updated on September 10, 2026 and Blitzrechnen on September 22, 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.*