iOS Persistence and Core Data Simple PersistenceLearn about simple persistence and how to save small pieces of data, like user preference, using NSUserDefaults.iOS File System and SandboxingLearn about the iOS File System, the “sandbox”, and how to access these files using NSFileManager.Introducing Core DataExplore what a data layer is, and how to convert a non-Core Data app to have a Core Data model.The Core Data StackSet up the classes we need to get Core Data up and running so that we can create, save, and delete model objects.Simpler Code with Core DataEnable user interfaces to reactively update whenever the model changes.Rounding Out Core DataSafely migrate user data between versions, and move slow work to the background.CompanyAbout Us Why Udacity? Blog In the News Jobs at Udacity Become a Mentor Partner with Udacity ResourcesCatalog Career Outcomes Help and FAQ Scholarships Resource Center Udacity SchoolsSchool of Artificial Intelligence School of Autonomous Systems School of Business School of Cloud Computing School of Cybersecurity School of Data Science School of Executive Leadership School of Product Management School of Programming and Development Career Resources Featured ProgramsBusiness Analytics SQL AWS Cloud Architect Data Analyst Intro to Programming Digital Marketing Self Driving Car Engineer Only at UdacityArtificial Intelligence Deep Learning Digital Marketing Flying Car and Autonomous Flight Engineer Intro to Self-Driving Cars Machine Learning Engineer Robotics Software Engineer