GazeSense vs PyGaze

GazeSense has no write-up on Specifiction yet; its figures are above.

PyGaze is an open-source Python toolbox for running eye-tracking experiments. It provides a shared interface for stimulus presentation and tracker communication, with support for EyeLink, SMI, Tobii, and mouse-simulated tracking. For stimuli, it works with PsychoPy and PyGame. The EyeTracker interface covers calibration, recording, gaze sampling, pupil-size retrieval, and fixation and saccade event functions. Gaze-contingent tools include forced retinal location, a cursor that follows gaze, and areas of interest. PyGaze is free at free and supports Linux, macOS, and Windows. Downloads include pip installation instructions for those systems, source packages, and portable Windows environments. The about page recommends Python 2.X and describes its audience as people with minor to advanced programming skills. Some tracker connections require separate steps: PyLink is proprietary and requires registration with SR Research, while SMI and Tobii API downloads must be requested from their makers. PyGaze supplies fresh gaze samples at the tracker’s sampling rate and returns the newest available sample between fresh samples.