The Pro version includes several tools that are not available in the standard free version:
For best results, run it once a month alongside a disk cleaner like BleachBit. You will be shocked at what remains on your system after ordinary uninstalls—and even more shocked at how easily Geek Uninstaller Pro 3.2.2 Portable makes it all disappear. Geek Uninstaller Pro 3.2.2 Portable