Closing Phone Apps
Once you open an app on your smartphone, the app stays open until you close it. Simple.
Except, returning to the Home screen doesn’t close the app; the app stays open in the background — using the phone’s battery power.
You should close your open apps periodically. Here’s how:
Android Phones (Samsung, Motorola, LG, HTC, etc):
Press and hold the Home button until the open apps appear in “thumbnail” size on the screen. Slide each app to the left or right side of the screen. To close all open apps at once, tap the “Remove All” button at the bottom of the screen.
Double-tap on the Home button and the open apps will appear in “thumbnail” size. Slide each app off the top of the screen. You cannot close the Home screen.
Rather than tap the Start button to move to another app, tap the “back” button (bottom left of phone) to close the app. If you want to see which apps are open, tap and hold the “back” button to see the open apps in “thumbnail” size. To close an app from the thumbnail view, tap on an app and then tap the “back” button.
For video demonstrations, search YouTube (youtube.com) for closing background apps on your specific phone.