| Feature | gDown | Neo4j Community | AuraDB Professional | AuraDB Business Critical |
|---|---|---|---|---|
| openCypher language and Bolt protocol gDown passes 3,862 of 3,863 TCK scenarios; Bolt up to 5.4. | Yes | Yes | Yes | Yes |
| Several databases on one server Community: a single user database. Aura Professional: one database per instance; Business Critical: several. | Yes | No | No | Yes |
| Replicated cluster (high availability) gDown: Raft, any member accepts writes. Community: no clustering. Aura Professional: single zone, no SLA; Business Critical: multi-zone, 99.95% SLA. | Yes | No | Partial or plan-dependent | Yes |
| Roles and privileges per label and property Community has no custom roles; Aura Professional has no fine-grained access control; Business Critical has RBAC and property-based control. | Yes | No | No | Yes |
| Single sign-on (OpenID Connect) Not in Community or Aura Professional; Business Critical offers SSO. | Yes | No | No | Yes |
| Online backup gDown: GET /cluster/backup. Community: offline dump only. Aura: daily backups, kept 7 days (Professional) or 30 days with hourly point-in-time restore (Business Critical). | Yes | Partial or plan-dependent | Yes | Yes |
| Cypher queries published as REST APIs (OpenAPI) gDown generates the contracts, checks tokens, limits the rate and serves a Swagger UI. Neo4j and Aura offer HTTP query endpoints, not published contracts. | Yes | Partial or plan-dependent | Partial or plan-dependent | Partial or plan-dependent |
| Vector and full-text indexes All three; gDown's vector index is exact up to 2,000 vectors, then approximate (HNSW). | Yes | Yes | Yes | Yes |
| APOC procedures A subset in gDown and on Aura; Community through the APOC plugin. | Partial or plan-dependent | Yes | Partial or plan-dependent | Partial or plan-dependent |
| WebAssembly modules inside a database Sandboxed: no imports, bounded memory and compute. | Yes | No | No | No |
| Single native executable, no JVM gDown is a GraalVM native image; Neo4j runs on the JVM; Aura is managed. | Yes | No | Not applicable | Not applicable |
| Runs on your own machines Aura is a managed cloud service. | Yes | Yes | No | No |
Neo4j Community and Aura entries follow Neo4j's public pricing and product pages (October 2026) and can change: check them before relying on them. gDown entries come from its README and tests.