# CSD Düsseldorf vs Kosmos Lab

The clearest difference is update cadence: Kosmos Lab at every 4 days against CSD Düsseldorf's every 11 months. CSD Düsseldorf'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. Neither carries in-app purchases, so what you see is what you pay.

CSD Düsseldorf ships an update every 11 months, Kosmos Lab every 4 days. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CSD Düsseldorf | Kosmos Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 days** |
| Size | 11 MB | 40 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [online-Forum GmbH](https://appshunter.io/developer/1125974529) | [Zentrum für künstlerische Forschung e.V.](https://appshunter.io/developer/6796385621) |

## What reviewers say

### CSD Düsseldorf

[App page](https://appshunter.io/ios/app/csd-dusseldorf/id1374151685)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kosmos Lab

[App page](https://appshunter.io/ios/app/kosmos-lab/id6796385619)

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

**In-app purchases:** none


## Frequently asked questions

### Is CSD Düsseldorf free?

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

### Is Kosmos Lab free?

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

### Do CSD Düsseldorf or Kosmos Lab have ads?

Neither CSD Düsseldorf nor Kosmos Lab shows ads.

### Which is updated more often, CSD Düsseldorf or Kosmos Lab?

CSD Düsseldorf ships an update every 11 months, and Kosmos Lab every 4 days. Most recently, CSD Düsseldorf was updated on October 19, 2026 and Kosmos Lab 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.*