How To Find Programs Running In Background -

Look at the icons on the top-right of your screen. Apps like Dropbox, Google Drive, or VPNs live here and run constantly unless you close them. 4. Smartphone Secrets: iOS and Android

If you find a program running in the background that you don't recognize or suspect is malicious: how to find programs running in background

Mobile devices handle background tasks differently to save battery, but you can still track them down. Look at the icons on the top-right of your screen