Frameworks are best described as jet packs for your apps. They boost performance, extend capabilities, easy & manageable code sharing. They are not just bundle of snippets of code but they offer APIs and streamline the development process.

Frameworks are capable of reducing development cycle and promotes code re-usability. They help you write dynamic, fluid code that can work with simple integrations.

When you write an app, you typically import Foundation or UIKit frameworks. The point of having these frameworks is to define methods, functions and classes in a succinct fashion. As a user of these frameworks, you don't care what underlying implementations says, you just give it an input and get an output. Imagine if you are working on Bluetooth based app and you had to write all the low level code to manage hardware yourself, effort of months will turn into years and this is where frameworks help us.

Now just like Apple and others create and distribute their frameworks, you can do that too and this course is all about learning to create your own framework and not only re-using it yourself but distributing it to others in developer community and make your name while giving back to the community.