It's redicously slow and laggy, you miss turns in battle and that's even if the battle screen loads, don't even think about upgrading your dinosaurs as that's the worst part of the lag, the loading screen takes 10 odd minutes to load and then you have to wait before you can actually do anything. My phone over heats and lags the whole system I swear their putting viruses out. This goes for two of my phones and a tablet, i will never pay money for this broken app.