Samsung Galaxy S7
Ending running applications
Some applications aren't ended completely when you return to the home screen. If you don't end them from the list of running applications, they keep running in the background which may slow down your phone.
Step 1 of 3
Briefly press the Application key.
Step 2 of 3
To end one running application, slide your finger right on the required application.
Step 3 of 3
To end all running applications, press CLOSE ALL.