Quick  easy to read and flexible. The way you can zoom in and out around the disk to determine where your space is taken up is very intuitive. Exactly what is needed from a disk space analysis tool. A great way to see which apps have downloaded bucketloads of data in the background to hide in those .obb folders  or to see that you've saved way too many 1080P videos using the camera on your device..
March 02 2016