The official website is no longer available. Last version, 1.3, released in June 2006, can be still downloaded from Softpedia.
Our users have written 2 comments and reviews about SequoiaView, and it has gotten 26 likes
Though discontinued, it was one of the first to offer visual representations of disk drive usage.
... this only shows one directory at a time. The beauty about Sequoia view is that you see the whole drive or at least a selection with subdirectories showing ALL files. This allows you to easily zero in on big files, to make freeing up disk space much more efficient.
Still looking. Wish that app would port to android. Maybe could ask the guys in Eindhoven nicely in Dutch?