LEAP is a combination of Spotlight, Bridge, Finder and more. The Finder in OS X is slow, cumbersome and limited. The Finder search interface is very cumbersome. Leap shows you all your files and, more importantly, where they are on your computer. No other tool does this. It works great for images and PDF, as well. LEAP does not require you to place documents in a special place, do not use databases. Only sees what is on your hard drive.