I recently bought an iPad and was told I needed the Multi-device (as i have a PC too) which I paid $130AUD for, but found the Mobile Security app and want to know if I still have to load the Multi-device as well or is the mobile security app a safe enough on its own? I ask as I have only just paid $130AUD for my Norton 360 for my PC (? Can't use this on my iPad as well as have tried to add but been unsuccessful). Could somebody please advise as the Mobile Security looks safe enough but I want to be 100% sure and protect myself. Thank you