# Robben.App vs myBibliothek

The clearest difference is in-app purchases: Robben.App at none against myBibliothek's 1. Robben.App also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.1). On price, update cadence and device support there is nothing between them.

Both are free to download. myBibliothek sells 1 one-off in-app purchase. Robben.App asks for nothing beyond the download.

Robben.App ships an update every 6 months, myBibliothek every 4 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Robben.App | myBibliothek |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 51 MB | 43 MB |
| Requires iOS | **16.4** | 18.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Landesbetrieb fuer Kuestenschutz, Nationalpark und Meeresschutz Schleswig-Holstein](https://appshunter.io/developer/1705383767) | [Gerold Carl](https://appshunter.io/developer/1550802629) |

## What reviewers say

### Robben.App

[App page](https://appshunter.io/ios/app/robbenapp/id6464050244)

**Features:** Vision Pro support

**In-app purchases:** none


### myBibliothek

[App page](https://appshunter.io/ios/app/mybibliothek/id6757924987)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to ad-free version | $0.99 | one-time |


## Frequently asked questions

### Is Robben.App free?

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

### Is myBibliothek free?

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

### Do Robben.App or myBibliothek have ads?

myBibliothek shows ads; Robben.App does not.

### Which is updated more often, Robben.App or myBibliothek?

Robben.App ships an update every 6 months, and myBibliothek every 4 months. Most recently, Robben.App was updated on October 25, 2026 and myBibliothek 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.*