Company Gamopolis created these great apps:
Audiobook and Podcast Player, Perry Rhodan: Kampf um Terra, Perry Rhodan: Kampf um Terra Schiffsalmanach, Perry Rhodan: Kampf um Terra, Perry Rhodan - Kampf um Terra Schiffsalmanach, Robo-Rail Easter 2013, RoboFix 2013, Perry Rhodan: Der Jahrmillionen-Feind, Scacorum, and others..