This thesis aims to analyze the design and development of a mobile application for iOS devices. The project was carried out in collaboration with Concept Engineering Reply. The thesis provides a detailed overview of the project and the functionalities implemented in the application, with an analysis of the libraries used and an explanation of specific Swift language constructs relevant to the development process. The discussion concludes with an overall evaluation of the work completed and a look at potential future developments, including possible improvements and integrations. The application is designed to monitor and analyze performance during track driving sessions. Users can create new circuits by recording GPS points along the track and later record driving sessions, collecting data on position and calculating lap times, speeds, and trajectories.