This is no standalone app. You need to install IP Widget (https://play.google.com/store/apps/details?id=de.dieterthiess.ipwidget) Get E-Mail Notifications on external IP address changes Get information about external IP address changes by email. You need to configure the SMTP connect in order to allow mails to be sent in the background. Works with Gmail, but requires less secure apps to be allowed. (https://myaccount.google.com/u/1/lesssecureapps) Just create a separate account if you worry a