A free app for Android, by Topobyte.de.

Düsseldorf Offline City Map is a free offline map app for Android. It offers an interactive map that lets you browse the city at amazing detail. Additionally, it comes with a search index for locating streets, but also other places of interest such as museums, restaurants, cafés, hotels, sights, and many more.

After installing the app, you no longer need to have an internet connection to browse the map. The app works reliably, no matter if you have a data or Wifi connection.

The app offers an option to use the search functionality. It is a quick and easy way to find what you’re looking for.