my friend has an iPhone 5. When her friend purchased the phone his sister downloaded what's app under her Apple ID. So when the app expires in the next 24 hours , does the person who downloaded the app ( whatsapp) Apple ID go away, or does my friend have to uninstall and reinstall under her Apple ID? I. Asking for my friend, I do not own an apple device. Nor will I ever. The fact that I'm using an iPad which is also my friends, is irrelevant. Thank you to anyone who can help.