for now we need to implement piracy control in our app which is developed using unity gaming platform with vuforia engine, with vb backend.
our licensed users can use our apps on limited number of devices. it could vary from user to user. that information to be available at db. based on that we have to restrict number of devices. say the user can use only on 3 devices. if user signs up from a fourth device he will be prompted that first device will be deactivated. and fourth device can proceed with using the app 24 hours after deactivation.
signing up process - now with emails and fb and instagram.