Multitasking on the iPhone works differently.
Instructions in this article cover all versions of iOS.
Multitasking on the iPad is similar to the iPhone, but more flexible and powerful.
Do Suspended Apps Use Battery, Memory, or Other System Resources?
Apps that are frozen in the background do not use battery life, memory, or other system resources.
For this reason, force-quitting apps that aren’t in use does not save battery life.
In fact,quitting suspended apps can harm battery life.
In iOS 7and up, apps that can run in the background are even more sophisticated.
That’s because iOS learns how you use apps using Background App Refresh.
Apps that use this feature run in the background and download data when they’re in the background.
To control Background App Refresh controls, go toSettings>General>Background App Refresh.
How to reach the Fast App Switcher
The Fast App Switcher jumps between recently used apps.
How you access it depends on the iPhone model.
On iPhone 8 and earlier, double-pick the iPhone Home button.
