Game App freezes, lags, force closes down making me automatically back out of the app, stops responding as soon after I open and start the app. It tends to lag and freeze during combat matches rather in single player battle campaign, limited time challenge modes. It just freezes, lags and even content on screen glitches if you tilt your iPhone or re enter game by tapping on the game app window on your iPhone. My iPhone is a nexus 5 android.