DONT DOWNLOAD DRAGON CITY!! They have options to use a software called Fyber to play other games to win gems to use in the game. The Fyber network doesn't work w the customer using the free way of gems and refuse to reissue out the gems you are owed they wait until your time is up to finally respond so they don't have to send you what you were supposed to actually receive! I repeat DO NOT DOWNLOAD!! unless u plan u pay for yourself. Really sad I had to write this post bc I was enjoying the game