Google switched to the isolated storage model (on the sd card) for KitKat - http://source.android.com/devices/tech/storage/ http://source.android.com/devices/te

Google switched to the isolated storage model (on the sd card) for KitKat - http://source.android.com/devices/tech/storage/ http://source.android.com/devices/tech/storage/. Google has content providers so if an app wants to share data it can do so https://developer.android.com/guide/topics/providers/content-provider-basics.html https://developer.android.com/guide/topics/providers/content.... If you really want to do something unsafe like allow direct file access to any folder then that is a reason to root your Android phone. Then using an app like SuperSU your can grant root permission to an application.