Retra vs WebGazer.js
| Retra | WebGazer.js | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Android | self-hosted, Web |
| Free plan | Yes | Yes |
| Input method | — | webcam |
| Gaze visualizations | — | real-time gaze coordinates, calibration points |
| Supported platforms | — | Google Chrome, Microsoft Edge, Mozilla Firefox, Opera, Safari |
Both are listed in Best Eye Tracking Software. On Inferse, Retra scores higher on our published basis.