This project is a clone of FB Messenger . Converted to Swift3 syntax (Courtesy: https://www.letsbuildthatapp.com/). It covers topics like: 1) Auto Layout Using Code 2) Core Data Entities: Create, Read, Delete and a lot more operations involving Core Data which would help in understanding the power of Core Data 3) Creating a Tab Bar Menu Programatically 4) Creating Chat Bubbles With Tails 5) How to Auto Update UICollectionView by inserting rows using NSFetchedResultsController 6) No Storyboards used