Hello Peter Gase,
Thank you for the information provided. I understand that you would like to know that if by changing from android to iphone you would need to re-purchase the Slingplayer app. If you switch to the iphone you would need to use your wife's icloud account to avoid the re-purchase of the SlingPlayer app. If by any chance you register your iphone with a different icloud account, then yes you would need to purchase the SlingPlayer app or you could get the free SlingPlayer app.
Sling Moderation Team