Without an eye tracking device, the Tobii Pro Sprint app allows you to live view and record usability test sessions of participants.
In order to get the full Tobii Pro Sprint experience and see what your participants see, you will need an eye tracking device. Tobii Pro Sprint currently supports the Tobii Pro Nano, Tobii Pro X3-120 and the Tobii Pro X2-30.
However, make sure you are careful with the mounting brackets as they may stick to your screen surface and possibly damage it.
Read more about hardware and software requirements