ELAN vs Once Sport
| ELAN | Once Sport | |
|---|---|---|
| Free trial | Yes | |
| Platforms | Linux, macOS, Windows | Linux, macOS, Web, Windows |
| Free plan | Yes | No |
| Frame-accurate marking | Yes | Yes |
| Drawing annotations | No | Yes |
| Custom labels or fields | Yes | Yes |
| Review workflow | No | |
| Dataset export | Yes | Yes |
Listed together in Best Video Annotation Software