This tutorial covers creating constraints programmatically for a mobile application's UI without using Storyboards or NIBs, focusing on PureLayout. The author assumes familiarity with Xcode, Swift, and CocoaPods. The project starts by setting up the project in Xcode, then creates a simple Contact Card application. The tutorial guides through creating an ImageView, adding constraints to position it correctly, and laying out other UI elements such as a segmented control and a button, using PureLayout for a more efficient and scalable approach.