FastTrack app does not collect any personal identifying information. FastTrack app does not store any user information. Third parties, such as Firebase Analytics (a Google service) may aggregate and display app usage information to show a number of app users over time. Deletion of FastTrack app from the device will delete all information FastTrack has stored on the device including preferences, fast history, and all other information related to FastTrack app. Consult a physician before starting any diet, exercise, or eating program.