Estuary vs Siddhi
Estuary
estuary.devSiddhi
siddhi.ioSide by side
| Figure | Estuary | Siddhi |
|---|---|---|
| Price from | $0.50/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 9 | 0 |
| Spec score · Stream Analytics Software | 9.0 (#3) | 7.4 (#21) |
| Deployment | Deployment choices include shared public infrastructure, dedicated private data planes and bring-your-own-cloud environments. | Siddhi can run embedded as a Java or Python library, as a microservice on bare metal or a VM, in Docker, or on Kubernetes. |
| Integrations | Estuary advertises more than 200 prebuilt connectors across databases, warehouses, SaaS apps, and cloud platforms, including Snowflake, BigQuery, Kafka, MySQL, and PostgreSQL. | Supported event sources and destinations listed include Kafka, NATS, RabbitMQ, HTTP, gRPC, JMS, MQTT, Amazon SQS, Google Pub/Sub, email, files, and WebSocket. |
| Security | Official documentation states encryption in transit and at rest, immutable infrastructure, a zero-trust network model and role-based access control. | WSO2 asks vulnerability reports to be sent privately to its security mailing list and says initial response time will be under one hour. |
| Support | The Cloud plan includes standard support through community Slack and email; Enterprise includes dedicated Slack and email support. | The site links to community support resources including a mailing list, contribution information, and security reporting. |
| What it does | Estuary is a right-time data platform that captures data once and delivers it to warehouses, operational systems, applications and AI workflows using CDC, streaming, ETL/ELT and scheduled movement. | Siddhi is an open-source stream and complex event processing platform for building event-driven applications. |
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
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.