There are multiple solutions for head tracking
1. If you want head tracking. Then the best option is to use freetrack, opentrack or trackIR just use it as you use it normally. In trinus select no headtracking.
2. Use pie tracking that will use your mobile gyro sensor. Install pie app on your phone and select pie tracker from trinus headtracking dropdown.
The first option is the best it will give you 6dof freedom movement.