AllegroGraph vs FairCom DB

AllegroGraph is a persistent graph database for RDF triples and quads, generic graphs, and vectors, using disk-based storage and efficient memory utilization. It supports SPARQL, RDFS++ reasoning, and Prolog, plus geospatial and temporal reasoning, social network analysis, native data types, and range queries. The database is ACID-compliant and includes online backups, point-in-time recovery, replication, and warm standby. It can integrate with large language models and store embedding vectors in a vector database. Security features include role-based permissions, repository access controls, security filters, and triple-level controls using attributes. LDAP and OAuth/OIDC authentication are supported, with TLS for client connections; the security overview recommends third-party tools for encryption at rest. Clients include Java, Python, and Lisp, alongside REST and browser-based WebView access. The server runs natively on x86-64 Linux, with documented Docker, Windows Subsystem for Linux, virtual machine, and cloud options. The free edition costs nothing, has no expiration or license key requirement, and allows up to 5,000,000 triples.

FairCom DB is a multimodel database for developing on-premises applications, combining JSON, key-value, SQL, and ISAM or record-buffer capabilities in one server. Applications can use different models over the same data, query with JSON or standard SQL, and receive query results as JSON. SQL connections are available through JDBC and ODBC, while the built-in API Explorer can help create JSON actions. The database can operate as a traditional server or be embedded in an application. Replication options address high availability and disaster recovery, with ACID compliance or eventual consistency. DB Notify publishes data-change events as JSON messages and integrates with MQTT, AMQP, and Kafka. FairCom DB v13 uses OpenSSL v3 for secure communications and supports X.509 client certificate authentication. File and user security are available only in the client/server operational model. A free Developer’s Edition is limited to development environments and has a three-hour timeout; production licensing requires contacting sales. A free trial is also available, and pricing is on request.