This app. designed for conducting psychology studies on immersion while people watch media, e.g. film, TV, or other forms of media. Various forms of measurement of engagement are possible, including the dual-task activity plays audio tones that the user responds to by pressing buttons (either high-tone or low-tone). Reaction-times are accurately measured in milliseconds and recorded. The completed trial data is then emailed to the experimenter as a csv file attachment.
For details see: