Progress Semaphore vs RDFox
| Progress Semaphore | RDFox | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | Yes |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | api, Linux, self-hosted, Web, Windows | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | No | No |
| Ontology modeling | Yes | Yes |
| Semantic reasoning | Yes | Yes |
| RDF/SPARQL support | Yes | Yes |
| Graph visualization | Yes | Yes |
| Import formats | RDF, Excel spreadsheets | N-Triples, Turtle, N-Quads, TriG, OWL 2 Functional-Style Syntax, Datalog |
| Deployment | both | both |
| Query languages | SPARQL | SPARQL 1.1 |
Both are listed in Best Knowledge Graph Software. On Inferse, RDFox scores higher on our published basis.