title: Can I run my Expo app on multiple iOS Simulators at once?
body: <p>Is it possible to run an <a href="https://expo.io" rel="noreferrer">Expo</a> app on multiple versions of iOS Simulator at once? It would be really nice to have two or three iPhones refreshing automatically, so that it's easy to tests the layout with different screen sizes.</p>
  
  <p>(I know I can do this with multiple hardware devices, and I know that I can change was device iOS Simulator should use.)</p>