Game Center login—ugh – Sudoku Revolution Review

I just loaded the free app. Each time I go to a new puzzle the Game Center login page pops up. I don’t want to log in and can’t find a way to shut it down. The page is a hindrance to the kind of game play I want. Although the puzzles are fun, the continued Game Center pop up is irritating enough that I won’t use this app much—if at all.
Review by CcerR on Sudoku Revolution.