screen duplicate

Screen ruler with many features.

Screen effects for presentations and more

Screen Capture and Recording for Mac OS X

Find duplicate songs in your music collection.

Find duplicate pictures on your computer.

A tool to find duplicate files on your computer.

Screenshot Plus can take full screen captures, grab portions of the screen.

Full-screen, minimalist word processor.

Enable the black boot screen with white Apple logo on all Macs.

Lock your screen from the menu bar.