Centre Charlemagne - Guide is an Android app developed by RWTH Aachen University that allows you to explore the history of the city of Aachen. With this app, you can access audio and written information about the permanent collection and temporary exhibitions of the Centre Charlemagne museum.

One of the most remarkable features of this app is that you can download the content in German, English, French, and Dutch, and use it without an internet connection. This is especially useful for visitors to the museum who may have limited access to the internet or prefer to save data while exploring the exhibitions.

The app is free to use and offers an accessible way to learn about the history and culture of Aachen through an interactive and engaging experience.