Great for finding the Apps that are using up your space. If you're constantly running out of space on your internal storage (or external storage) and can't figure out why  this is a must have app !. I especially like the latest update that shows app data correctly and not as system data. This allowed me to free up 3GB of storage used by Google Photos & Download Manager. Both apps I don't need and so I deleted the data storage in each app & disabled them. Excellent !
April 26 2016