# Cottbus vs Keyzers App

The clearest difference is update cadence: Cottbus at every 3 months against Keyzers App's every 15 months. Cottbus also leads on iOS requirement (13.0 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.

Cottbus ships an update every 3 months, Keyzers App every 15 months. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Cottbus | Keyzers App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 15 months |
| Size | 22 MB | 71 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [hyperworx](https://appshunter.io/developer/404150106) | [Theo Keijzers](https://appshunter.io/developer/1435813932) |

## What reviewers say

### Cottbus

[App page](https://appshunter.io/ios/app/cottbus/id449900802)

**Features:** macOS Compatibility

**In-app purchases:** none


### Keyzers App

[App page](https://appshunter.io/ios/app/keyzers-app/id1435813933)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cottbus free?

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

### Is Keyzers App free?

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

### Do Cottbus or Keyzers App have ads?

Neither Cottbus nor Keyzers App shows ads.

### Which is updated more often, Cottbus or Keyzers App?

Cottbus ships an update every 3 months, and Keyzers App every 15 months. Most recently, Cottbus was updated on October 12, 2026 and Keyzers App on October 14, 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.*