iTrace vs Retra
| iTrace | Retra | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Android |
| Input method | webcam | — |
| Gaze visualizations | gaze trace, x/y time series, speed plot, pupil proxy, event raster, scanpath, direction polar plot, amplitude histogram, main-sequence scatter | — |
| Export formats | CSV, JSON | — |
| Supported platforms | web browser through the local HTML interface | — |
| Free plan | — | Yes |
Both are listed in Best Eye Tracking Software. On Inferse, Retra scores higher on our published basis.