DataHub vs SemanticWorx Affirma
DataHub
datahub.comSemanticWorx Affirma
semanticworx.comSide by side
| Figure | DataHub | SemanticWorx Affirma |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 3 |
| Spec score · Metadata Management Software | 8.6 (#5) | 6.6 (#13) |
| Governance | DataHub includes a versioned business glossary, ownership and stewardship tools, access policies and compliance controls. | Governance capabilities include business workflows such as approvals, audit review, and notifications. |
| Integrations | The project advertises more than 150 integrations, including Snowflake, BigQuery, dbt, Databricks, Looker, Tableau, Power BI, Airflow, Kafka, S3 and Iceberg. | The pricing page describes importing schemas, ODBC data sources, UML, XML, and reference data; the site also describes Databricks Unity Catalog metadata harvesting and lineage integration. |
| Support | Open-source users receive community Slack and self-service documentation, while Cloud customers receive dedicated customer success and private support channels. | Basic Support is included with subscriptions and lists software updates, basic ticket turnaround, a knowledge base, and a solution forum. |
Plans
SemanticWorx Affirma
- CorePrice not published
- ProfessionalPrice not published
- UltimatePrice not published
In their own words
DataHub
DataHub brings technical metadata, business knowledge, and documentation together for enterprise data and AI agents. It is available as self-hosted Core or as managed DataHub Cloud. Cloud provides natural-language search, an Ask DataHub chat agent, smart ranking, and a hosted MCP server that connects AI tools to its catalog. Its observability tools run automated schema, freshness, volume, and custom quality checks, with AI anomaly detection and incident workflows. Cross-platform, column-level lineage traces data from sources through transformations and AI models to downstream assets. DataHub Cloud has more than 100 pre-built connectors and names Slack, Microsoft Teams, Chrome, and BI tools among its native integrations. Cloud is described as SOC 2 compliant, with role- and attribute-based access controls and an in-VPC execution option for sensitive sources. Cloud availability is described as SLA-backed at 99.5%. DataHub Core is free to deploy, but requires users to handle installation, configuration, upgrades, uptime, and troubleshooting. Cloud pricing depends on data volume, users, and selected capabilities. A Google Cloud offer advertises a 21-day Cloud trial with a dedicated instance and full platform access.
SemanticWorx Affirma
SemanticWorx Affirma is a paid enterprise semantic and metadata management solution for harmonizing data architecture. Its catalog stores data models, schemas, integration schemas, and other definitions, while an enterprise semantic model records shared meanings and dataset relationships. Lineage, mapping, and transformation features show data origins and movement between sources and targets. Governance workflows support approvals, audit review, and notifications. Build Automation provides code generation, and Data Design can generate XSD and DDL for MySQL, Hana, Snowflake, Oracle, MS SQL, and SQLite. Deployment options are on-premises and cloud-based, with self-hosted and web access listed. Affirma can import schemas, ODBC sources, UML, XML, and reference data, and the site describes Databricks Unity Catalog metadata harvesting and lineage integration. Core, Professional, and Ultimate subscriptions are annual and priced by inquiry, considering users and data sources. Basic Support includes updates, ticket turnaround, a knowledge base, and a solution forum.