| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 17 | 2 |
| Spec score · Spatial Databases | 9.3 (#1) | 7.9 (#20) |
| Spec score · Database Software | 9.0 (#10) | 7.6 (#65) |
| Connectivity | CrateDB supports the PostgreSQL wire protocol and a native HTTP endpoint. | Informix Client SDK provides ODBC, JDBC, .NET, ESQL/C, C++ object interface and OLE DB APIs; IBM documentation also lists JSON queries, MongoDB community drivers and a REST API. |
| Free plan | Yes | Yes |
| Security | CrateDB describes authentication, authorization, encryption, audit logging and compliance certifications across managed and self-managed deployments. | Informix supports data encryption, secured connections, user privilege and access controls, and security auditing. |
| Support | Support options include a Discourse community, GitHub issues and feature requests, documentation and paid support plans. | IBM Extended Support can provide up to four additional years of support after a version reaches end of support, with defect fixes during the first year. |
