Game Center is a nasty piece of work by Apple. It's ruined iOS 9 and I regret installing that on my iPad and iPhone 6. Now, when I enter a very simple solitaire

Game Center is a nasty piece of work by Apple. It's ruined iOS 9 and I regret installing that on my iPad and iPhone 6. Now, when I enter a very simple solitaire-like game called Midnight Mahjongg, I get slow-animating, built-in-delayed GC upsells and requests to log in to GC, even though I hate and detest and loathe GC. And if I so much as accidentally go to Home screen and back into game, presto, GC upsell appears again. On iPad it appears for 5 times -- you have to cancel 5 times and then it gets quiet. Until the next day. On iPhone, 3 cancels is enough to shut it up. Until the next day. Use the game the next day and the counters are reset: 5 more cancels on iPad, 3 cancels on iPhone. GC is the worst thing Apple's done in years. And if they have brought that crap and its fascist ways to MacOSX, then I really am hesitant to install any more MacOSX updates.