Giving that the phone its self does not come with much storage and with Android KitKat it doesn't allow you to move app data that I don't need to my sd card that has over 10gb which is is way more then the phones storage the only way you can do that in KitKat is if you root your device, and Android Marshmallow already allows that so there's no need for rooting. But don't forget that Android Marshmallow is such an amazing update with loads of improvement and KitKat on the Sharp Aquos Crystal can be buggy from time to time and sometimes crashes. ANDROID PLEASE TAKE MY PETITION TO CONSIDERATION!!!