Ontop vs Progress Semaphore
| Ontop | Progress Semaphore | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Windows, macOS, Linux | api, Linux, self-hosted, Web, Windows |
| Ontology modeling | Yes | Yes |
| Semantic reasoning | Yes | Yes |
| RDF/SPARQL support | Yes | Yes |
| Import formats | RDF/XML, Turtle, N-Triples, N-Quads, TriG, JSON-LD, R2RML, Ontop mapping format | RDF, Excel spreadsheets |
| Deployment | both | both |
| Query languages | SPARQL | SPARQL |
| Free plan | — | No |
| Graph visualization | — | Yes |
Both are listed in Best Knowledge Graph Software. On Specifiction, Progress Semaphore scores higher on our published basis.