Prosoft Engineering ( has announced the availability of Drive Genius External Defrag at the Mac App Store. It requires Mac OS X 10.6 or higher and costs US$29.99.

“Prosoft is excited to release our new Drive Genius External Defrag app, which is a standout tool from the award-winning utility Drive Genius 3,” says Greg Brewer, CEO of Prosoft Engineering. “Drive Genius External Defrag gives you the power to defrag/optimize any of your external hard drives. You can now easily defragment to increase the performance and speed of all your external Mac hard drives.”

Drive Genius External Defrag reorganizes the fragmented pieces of all the files and compacts their contents into one continuous block for faster access times, with all the empty space at the end. The full version of Drive Genius 3 includes features like DrivePulse, Enhanced Defrag, DriveSlim, Enhanced Repartition and Sector Edit.