The Infront Analytics add-in does not run natively on macOS. In order to use it, you need to get Windows running on your Mac.
There are multiple options for running Windows on a Mac. Every Mac comes with Apple Boot Camp software, which helps you install Windows into a separate partition. To switch between operating systems, you need to restart your computer. In addition, you cannot run macOS applications and Windows applications side-by-side at the same time.
Another option is to run Windows as a guest operating system in a virtual machine, using a program such as Parallels. This is convenient because you do not have to restart your computer to switch over to Windows. Instead, Windows runs in a macOS application window.
In both cases, you will have to acquire the Windows and Office software licenses.