i cannot get the app on my laptop,i downloaded the software and was confirmed registered, but i have no app>
Do you see a small 'y' icon in your system tray or menu bar? The younity app on your computer is not like the younity app on your iOS device. At this time the purpose of younity on your computer is to scan your directories and make the files available via your iOS device. You will not see the same UI on the computer that you see on the iOS device.
Please let me know if you see the 'y' icon in your system tray or menu bar (depending on whether you're running Mac or Windows).