OWLGrEd vs Progress Semaphore
| OWLGrEd | Progress Semaphore | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | Yes |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Web, Windows | api, Linux, self-hosted, Web, Windows |
| Free plan | Yes | No |
| Ontology modeling | Yes | Yes |
| Graph visualization | Yes | Yes |
| Import formats | .owl | RDF, Excel spreadsheets |
| Deployment | both | both |
| Semantic reasoning | — | Yes |
| RDF/SPARQL support | — | Yes |
| Query languages | — | SPARQL |
Both are listed in Best Knowledge Graph Software. On Freedom251, OWLGrEd scores higher on our published basis.