DaisyDisk

[8] DaisyDisk was started in late 2008 by interaction designer Taras Brizitsky and programmer Oleg Krupnov.

They built the codebase from scratch to try to achieve higher speeds than similar programs.

[11] DaisyDisk displays the contents as a color-coded sunburst diagram, resembling the petals of a daisy.

[6] DaisyDisk provides a Trash-like collector icon in the lower left of its interface where files and folders can be dragged and dropped for deletion.

[13] As of DaisyDisk v3, a specialized version of the app exists for Mac users with Retina Displays.