Nektony (http://nektony.com) has introduced App Cleaner 2.2, an update of the cleanup utility developed exclusively for Mac OS X. It’s a maintenance upgrade.
App Cleaner was developed specifically to help anyone find and delete application service files that occupy not only disk space, but may influence on overall performance. The app also can look for leftovers; service files left after usual deletion by moving files into the Trash. With the help of App Uninstaller you may also reset all application settings and launch it as a first time.
App Cleaner requires Mac OS X 10.9 or higher and is free. It’s available at the Mac App Store in the Utilities category.