In order to communicate with your computer, the LEDs need to use the DMX/ArtNet protocol.
Actually any software that can handle such protocol will be able to control your LEDs.
However, both the LED by garageCube and the MADLight tool in MadMapper have been developed together which makes MadMapper the best option to control your LED by garageCube : the user friendly interface and the MADLight tool designed to animate modest or massive installations make it a software of choice.
A free demo version is available as well as rental, perpetual and educational versions.
You need only 1 license to run MadMapper and use your LEDs or you even use the MiniMad device