In this tutorial, you will learn how to:
• Access recent apps
• Open an app
• Switch between apps
• Close an app
For information on viewing app and data usage, please visit the View & Manage Data tutorial. Learn more from Apple support articles:
• Understand multitasking and background activity on your iPhone
• Force an app to close in iOS
Access recent apps
Press the Home button twice.
Open an app
Select the desired app. 
Switch between apps
Swipe left or right to find the app you want to use. 
Close an app
Swipe up on the desired app you wish to close.
