Fred vs Retra
| Fred | Retra | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Android |
| Input method | webcam | — |
| Study mode | remote | — |
| Gaze visualizations | gaze focus; recent gaze trail | — |
| Supported platforms | compatible laptop or desktop webcam | — |
| Free plan | — | Yes |
Both are listed in Best Eye Tracking Software. On Samsung Mobile US Press, Retra scores higher on our published basis.