Der Kölner Dom is a free mobile application available on Android that offers a unique and spiritual experience of the Cologne Cathedral. With this app, visitors can embark on a spiritual tour of the cathedral and learn about its religious significance and history.

The app features 10 stations, each offering a spiritual impulse that visitors can listen to through audio recordings. The stations are numbered on the map, which serves as a guide for the tour. Visitors can start the tour automatically by placing themselves near a station, and the app will detect their location and guide them from one station to another. The audio recordings start automatically when visitors are within range of a station.

Overall, Der Kölner Dom provides a new and immersive way to experience the Cologne Cathedral, allowing visitors to explore its spiritual dimension and learn about its history in a unique and engaging way.