Go to Settings, select an app, and use Force Stop to stop it from running. On Pixel phones, turn off Allow background usage; on Galaxy phones, choose Restricted to save battery. Developer options show ...

The problem starts when you swipe them away every few minutes. Each time you reopen them, your phone has to reload all the data, restart background processes, and redraw the interface. That "fresh ...

You often press the back button on your screen repeatedly as a quick way to exit the app. Even if the app disappears, it will still run in the background. It only closes until you've set the app to ...