1) Go to the Google Play and search for PowerSchool for Parents or PowerSchool for Students - be sure to only select apps that have the Pearson name in the logo. Download and install as you would any other apps for your Droid device.
PowerSchool Mobile Apps will work on the iPhone or the iPad as well Droid OS based devices. Other platforms are not supported at this time, although you may access the web based Parent / Student web portals from most devices.