Medical device software using immersive technology such as virtual reality, augmented reality, and mixed reality that immerses users in computer-generated environments while walking them through specific movements and tasks, for medical and therapeutic purposes. Inside the generated environment user interacts and reacts to the stimulation while movements and reactions are analyzed and quantified. The software provides assessment, evaluation and training tools, and meaningful data analytics for various medical and wellness use cases. The software can be used in clinics, hospitals and rehabilitation centers or at Home for remote monitoring and home exercising