Uninstalling application on a mac is easy....... but they can be either one-two-step long.... or they can be about fifteen-twenty steps long
Using the applications's built-in uninstaller
Some Mac applications come with their own uninstaller programs. If your mac application does come with its own uninstaller, then that's the best way to uninstall your app .
Trashing the .app bundle using Finder
An app can be uninstalled by going to the /Applications folder using Finder and then, simply moving a .app bundle (or an application folder) into the trash like this:
Uninstalling from the Launchpad
Or you can do it from the OS X Lion (10..7) Launchpad.
In the launchpad (or in a launchpad app drawer), long-click an application icon until the app icons start to wiggle. If the app is removable from the Launchpad, then tiny 'X' should appear on the top left corner of the removable apps. Click on the 'X' to uninstall the app from the Mac - just like the way iOS does it.