Privacy Notifications for Transparency in Fitness Apps

mHealth applications including fitness apps are an important trend. To monitor fitness activities a broad range of personal data is processed typically including location data and vital signs. For some of these applications it is not transparent which data is processed. To foster transparency and intervenability in mobile applications the concept of privacy notifications is an opportunity to provide users with information about processed data during the use of the application. In the context of a fitness app a concept for privacy notifications is proposed and evaluated in a user study.