| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 5 |
| Spec score · Data Virtualization Software | 7.4 (#19) | 8.4 (#7) |
| Spec score · Data Federation Software | 7.1 (#20) | 8.4 (#4) |
| Deployment | Querona says it runs entirely on customer-controlled infrastructure, including on-premise, cloud, or hybrid environments. | Stardog can run as a managed AWS cloud service, in customer cloud environments, or on premises through Docker, Kubernetes, AWS Marketplace, and Azure Marketplace. |
| Headquarters | The company page lists its CEE office at Kwitnącego Sadu 8, 02-202 Warsaw, Poland. | New York, New York, United States |
| Purpose | Querona describes itself as a data virtualization platform that connects data sources in a virtual database for analytics and reporting. | Stardog connects enterprise data into a semantic layer for AI, analytics, search, and applications. |
