It can help you to manage your disk, as you can easily spot which files and folders take up the most space.
It uses a so-called tree map for visualisation. Each file is shown as a rectangle with an area proportional to the file's size. Files in the same folder appear together, but their placement is otherwise arbitrary.
What's New:
- Fixed "silly typo" bug that caused crashes when scanning.
- Failures of FSRefMakePath do not abort scanning anymore, but are handled gracefully instead.