Your Challenge

Use Swift to create a phone app. Then, make your own modifications to customize your app.

Use Code With Chris Tutorials to complete your App.

What You’ll Learn

How to design, build, test, and share simple applications for mobile devices using Swift

What Is an App?

App is short for application. We use "app" to mean a software program that performs a specific task. Most people use "app" to refer to software running on a mobile device like a smartphone or tablet.

You have probably used an app to do some or all of the following:

• Play a game

• Watch videos

• Find a location or directions

• Check the weather

• Check your email

• Update your Facebook account

Digging Deeper

Mobile Apps are Big Business

Nick D’Aloisio was a high school student in England when he became a mobile app inventor. When he was only 15, he invented an app called Summly that made news easier to read on a smartphone.

In 2013 he sold his app to Yahoo for a reported $30 million – before graduating from high school!

Angry Birds is one of the most successful apps ever created. Originally designed to work on a game console, the app’s popularity exploded when an inexpensive version was created for use on smartphones. Angry Birds has been downloaded over 1 billion times!