Can you please explain the process of Previewing the application in development on IOS Devices like iPhone, iPad. Iam able to do preview on Android phone. WHen I try to Preview on IOS, the app opens in XCode (my version is 7.0). I dont have an Apple developer licence too. Is that needed for preview?
Hey, apple requires you to have an apple developer license 
Please tell us if you have any other issues.