GazeSense vs iTrace
GazeSense
eyeware.techiTrace
github.comSide by side
| Figure | GazeSense | iTrace |
|---|---|---|
| Price from | $199/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Eye Tracking Software | 8.3 (#4) | 8.4 (#2) |
| Accuracy limit | The page states accuracy above 1.5 degrees under ideal conditions and says it can decrease toward screen edges, reaching 5° for calibrated users and 10° for uncalibrated users. | The live webcam pupil measurement is a relative proxy and does not infer pupil diameter in millimetres. |
| Calibration | Calibration options are automatic or 1-, 5-, or 9-point screen calibration. | It supports affine screen-space calibration and reports calibration error and gaze-quality measures. |
| Integrations | The maker says GazeSense SDK powers AMD Privacy View and Eyeware Beam. | The project lists OpenCV, MediaPipe, FastAPI, Uvicorn, Streamlit, Plotly, and Matplotlib as optional dependencies. |
| Purpose | GazeSense is AI-powered eye-tracking software and an SDK for webcams and 3D sensors. | iTrace is a webcam eye-movement analysis toolkit for gaze, saccades, microsaccades, and pupil measurements. |
Plans
In their own words
iTrace
iTrace is a free, MIT-licensed toolkit for analyzing webcam eye-tracking data, with a scientific core built on NumPy and SciPy. It computes gaze in degrees of visual angle and detects fixations, saccades, and microsaccades using I-VT, I-DT, and Engbert–Kliegl methods. Pupil tools include blink detection and interpolation, preprocessing, and eye-crop segmentation measured in pixels or relative to iris size. Affine screen-space calibration reports calibration error and gaze-quality measures. The command-line tool analyzes gaze CSV files and exports JSON reports. Optional webcam capture uses OpenCV and MediaPipe, and optional interfaces include a local HTML app using FastAPI and WebSockets and a Streamlit dashboard. Live workflows can export derived gaze, pupil, and capture CSVs. By default, the workflow does not save raw eye video or persisted eye-crop images, though live viewing may send a temporary JPEG crop to a browser over a local WebSocket. The project says its checks use synthetic ground truth rather than real eye-tracking data or a reference device. Webcam pupil size is a relative proxy, not a measurement in millimetres.