Portable Audacity OS X is the binary distribution of the Audacity audio editor for Mac OS X packaged as portable application so you can take your preferences with you.
Portable Audacity OS X is the Audacity audio editor packaged as portable application so you can carry around with you on any portable device, USB thumb drive, iPod, portable hard drive,memory card, other portable device (also on your internal hard disk) as long as it has 24 MB of free space and use on any Mac OS X computer, taking your preferences with you.