title: Game center sandbox at ios 9
body: <p>After migrating to ios 9 sandbox switch for Game Center has gone.</p>
  
  <p>Before ios 9 there was developer (sandbox) and live environment and while production one had to create standalone sandbox user, switch sandbox option and test applications. Also it was dangerous to mix live and sandbox logging and accounts which may lead to misc problems.</p>
  
  <p>What should I do now to test game center?</p>