Hi folks, I've subscribed to a couple magazines on my old ipad. However, with my new ipad, it doesn't recognize me as the subscriber and is telling me I need to repurchase. These were purchased with my old ipad and I never had to register with the magazines specifically as it just charged me through itunes. To get around this, is it as simple as creating a username/logging in on the app with my old ipad, then signing in under my username/password in the app with my new ipad or are subscriptions only good with one device? Was just hoping to avoid giving them my email info if it isn't necessary. thanks!