Hi @nekromantcer, it’s not so much a question of the ‘time’ you are storing gaze data, but rather that it is being used for analytical not *Interactive* purposes that necessitates the purchase of the Tobii Pro SDK Licence, which incidentally includes
numerous samples that show the ease with which to store gaze data in the fashion you desire.
Please find further details @ https://help.tobii.com/hc/en-us/articles/210251205-Can-I-use-a-Tobii-Eye-Tracker-for-research-purposes-