Estuary vs Google Cloud Datastream
Estuary
estuary.dev
Google Cloud Datastream
cloud.google.comSide by side
| Figure | Estuary | Google Cloud Datastream |
|---|---|---|
| Price from | $0.50/mo | $0.40/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 9 | 3 |
| Spec score · Data Replication Software | 9.2 (#1) | 8.0 (#13) |
| Spec score · Change Data Capture Software | 9.3 (#1) | 8.2 (#6) |
| Encryption | Estuary states that data is encrypted in transit and at rest, with mutual TLS between internal services and encrypted connector credentials. | Buffered data is encrypted at rest, and replicated data is encrypted by default using destination security controls. |
| Integrations | Estuary advertises more than 200 prebuilt connectors across databases, warehouses, SaaS apps, and cloud platforms, including Snowflake, BigQuery, Kafka, MySQL, and PostgreSQL. | Datastream integrates with Dataflow templates to load data from Cloud Storage into destinations including BigQuery, Cloud SQL, and Spanner. |
Plans
Estuary
- FreeFree
- Pay-as-you-go$100 a month
- AnnualPriced on request
- DeveloperFree
- FreeFree
- Cloud$0.50 a month
- Cloud PAYG$0.50 a month
- EnterprisePriced on request
- Private/BYOCPriced on request
Google Cloud Datastream
- Datastream Free TierFree
- Datastream backfill$0.40 a month
- Datastream CDC$2 a month
In their own words
Estuary
Estuary is a managed data integration platform for combining change data capture, batch, streaming, and app synchronization for analytics, operations, and AI. It supports transformations while data is moving, using SQL, Python, or TypeScript, and describes delivery as exactly once with end-to-end latency under 100 milliseconds. More than 200 prebuilt connectors cover databases, warehouses, SaaS apps, and cloud platforms, including Snowflake, BigQuery, Kafka, MySQL, and PostgreSQL. Customers can store data in their own cloud bucket for a duration they choose, and select public, private, or Bring Your Own Cloud deployment. Estuary lists SOC 2 Type II, HIPAA, HITECH, CCPA, and GDPR among its compliance standards, and says data is encrypted in transit and at rest. It is available through API, self-hosted, and web options. The indefinite free tier is limited to 10 GB per month and two concurrent connector instances; paid plans start at $100 a month.
Google Cloud Datastream
Google Cloud Datastream is a serverless change data capture and replication service for synchronizing data. Streams can capture ongoing updates and backfill historical records, while the service scales automatically without resources for users to provision or manage. Supported destinations include BigQuery, Cloud Storage, and Apache Iceberg tables. Documented sources include Oracle, MySQL, PostgreSQL, AlloyDB, SQL Server, MongoDB, Spanner, Salesforce, ServiceNow, Workday, and Microsoft Dataverse; some sources are marked as preview. Datastream can work with Dataflow templates to load data from Cloud Storage into destinations including BigQuery, Cloud SQL, and Spanner. Connectivity options include IP allowlisting, a forward SSH tunnel, and private connectivity over VPC peering. Processing is charged, idle streams incur no cost, and other Google Cloud resources are billed separately. The free tier includes 100 GiB of eligible CDC data per month per billing account. Events are delivered at least once, but ordering is not guaranteed. Datastream is administered through the Google Cloud console, CLI, or REST API.