What are some alternatives?
When comparing GestureWorks Gameplay and Xpadder, you can also consider the following products
TouchMousePointer - TouchMousePointer is desktop application for Windows 8, Windows 8.1 or later.
DS4Windows - DS4 Tool for Windows
Padlet Briefcase - Padlet Briefcase provides a virtual canvas for team collaboration that can be used for venn diagram, discussion board or for a business plan
reWASD - First and only gamepad mapper to make Xbox Elite paddles separate buttons.
PlayOnLinux - PlayOnLinux will allow you to play your favorite games on Linux easily
AntiMicro - A tool for mapping keyboard and mouse events to gamepads and joysticks.