How to make time if you are too busy? Find out some ideas how you can help yourself with learning Swift if you don’t have enough time. Or, if you want to improve your skills in a train, plane, break between lessons, etc.
Core Data is a powerful database for iOS and MacOS. It allows you to store information on device and - of course - read them. For small and bigger projects Core Data is a great solution. Especially that Core Data contains "magical" features as fetching, sorting or summing values.