Drive Genius 4 is a must-have for many Mac users, and we have a deal on it today. It can create a bootable partition for you to use to repair your startup disk, it will find and delete large and duplicate files, it will fix problems with your file system, repair folder corruption and much more. It retails for $99, but through our deal it's $49.99.
Check It Out: Drive Genius 4 for Macs: $49.99
