I purchased the Celsius app on my iPhone, and I also bought the extensions by an in-app purchase. I can transfer the app to my iPad, but not the in-app purchase. On the Apple support pages, I read that it is possible to transfer a non-replanishable in-app purchase ( http://support.apple.com/kb/ht4009 ). However, the in-app purchase doesn't appear on my iPad and it looks like I have to pay again for it. Maybe this is because the iPad is registered on my wife's name?