Sorry folks this is actually feedback and intended. Happy to take your feedback to the team but I will not be responding to anyone who swears, and those posts have and will be deleted.
The Quit button was causing crashes on Android.
You can quit now by using the back button on your device or using the square button on your device or swiping up to show your open apps then either swiping Gems of War off the screen or tapping the X button to close it. It’s the same amount of clicks to quit the game now as it was before.