Citykey - Citizen Services is an Android application developed by Deutsche Telekom AG that connects citizens to their local government services. With Citykey, users can submit applications to their city offices, book appointments, stay informed about city-related news, and report defective infrastructure. Citykey also offers a garbage collection calendar, event finder, digital administration with eID, citizen participation, and interesting places.

One of the highlights of Citykey is the garbage collection calendar feature, which distinguishes between different types of garbage and is always up-to-date and street-accurate. The app also offers an event finder that helps users stay up-to-date with festivals, events, and cultural activities in their area. Users can also book appointments with their local office and fill out forms for various administrative purposes.

Citykey is currently available for Bonn, Mannheim, Paderborn, Sankt Augustin, Hennef, Siegburg, and Bad Honnef and is constantly being updated with new features that make everyday life easier. The app is based on open-source software and is freely available for all. Users can leave feedback via the feedback function in the app.

Overall, Citykey is a great way for citizens to stay connected with their local government services and make their everyday life easier.