So called corona tracing apps are an essential part of national strategies to fight the coronavirus. Contact tracing apps aim to trace infection chains and interrupt them as quickly as possible more effectively. Corona tracing apps can be designed in a variety of ways from a technological, a development, and a functional perspective. Due to the diversity of options, more than 40 different apps have been developed and released in Europe since the beginning of the corona pandemic. This diversity of technology becomes a problem because the effectiveness of corona tracing apps depends on how many citizens use the same app. This paper addresses the diversity of different app configurations. Based on a morphological analysis, we investigate in which aspects the apps differ and then show that these apps can be distinguished into two archetypes.