Chiasm vs Retra
| Chiasm | Retra | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Android |
| Free plan | No | Yes |
| Input method | webcam | — |
| Study mode | remote | — |
| Export formats | download from Chiasm; stream to own server | — |
| Supported platforms | Google Chrome; laptops; desktops with a webcam | — |
Both are listed in Best Eye Tracking Software. On Freedom251, Retra scores higher on our published basis.