Feng-GUI vs PyGaze

Feng-GUI is a visual insights platform that predicts eye-tracking patterns and analyzes attention with AI. It can process websites, advertisements, videos, print materials, shelf layouts, signage and packaging. Reports include heatmaps, gaze plots, focus maps, Areas of Interest and aesthetics analyses, while an AI Assistant turns insights and recommendations into concise summaries. Feng-GUI can detect faces and analyze eight expressions: Neutral, Happy, Surprise, Sad, Anger, Disgust, Fear and Contempt. Report data exports as raw images, JSON or CSV. The service is available through a web browser and an open Platform API, with Model Context Protocol support for AI agents. The company states that MIT benchmarking found results 92% similar to real eye-tracking. It also states compliance with GDPR and PCI DSS and describes itself as a certified Microsoft supplier meeting SSPA and Supplier Data Protection Requirements. Uploaded files and reports are automatically deleted after three months for monthly subscribers and one year for annual subscribers. The documented maximum image size is 20 MB. Business costs $67 a month, billed annually; Basic costs $99 a month, billed monthly.

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.