How CleanMyMac
uninstalls apps:
CleanMyMac is able to uninstall software on Mac machine along with all related supporting and leftover files and other useless data.
CleanMyMac can also uninstall Mac OS X components that you may not need anymore, such as widgets, preference panes, extensions and plugins.
As an all-in-one tool CleanMyMac includes many other modules to clean your hard drive from useless files and speed up your Mac.