# Apache Flink vs Estuary Flow

**Leader by Vioscale score:** Estuary Flow

| Attribute | Apache Flink | Estuary Flow |
|---|---|---|
| **Vioscale score** | 57.5 (56% (medium)) | 80.4 (71% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 1,372 | - |
| adoption.github_stars | 26,293 | - |
| adoption.package_downloads_weekly | 50,231 | - |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A framework that processes real-time streams and batch data at scale, enabling stateful computations with low latency and high throughput across distributed clusters. | Estuary provides real-time and batch data movement across hundreds of systems using log-based change capture, event streaming, and traditional extract-load patterns, all without requiring code or infrastructure management. It's designed to power analytics, operational systems, and AI applications with sub-100ms latency in a single managed service. |
| features.capabilities | `{"role":"engine","paradigm":"both","connector_count":"17+","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true}` | `{"cdc":true,"role":"elt","paradigm":"both","managed_cloud":true,"connector_count":"200+","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true}` |
| integrations.count | 17 | 200 |
| integrations.list | `[{"name":"Kafka"},{"name":"Cassandra"},{"name":"Elasticsearch"},{"name":"MongoDB"},{"name":"OpenSearch"},{"name":"RabbitMQ"},{"name":"Google Cloud Pub/Sub"},{"name":"Apache Pulsar"},{"name":"JDBC"},{"name":"Apache HBase"},{"name":"Apache Hive"},{"name":"Amazon Kinesis"},{"name":"Amazon Firehose"},{"name":"Amazon DynamoDB"},{"name":"Apache Kudu"},{"name":"Prometheus"},{"name":"HTTP"}]` | `[{"name":"Oracle"},{"name":"MySQL"},{"name":"PostgreSQL"},{"name":"Amazon S3"},{"name":"Google Cloud Storage"},{"name":"Azure Blob Storage"},{"name":"NetSuite"},{"name":"HubSpot"},{"name":"Salesforce"},{"name":"Google Pub/Sub"},{"name":"Amazon Kinesis"},{"name":"Apache Kafka"},{"name":"Snowflake"},{"name":"Google BigQuery"},{"name":"Amazon Redshift"},{"name":"Elasticsearch"},{"name":"MongoDB"},{"name":"Amazon DynamoDB"},{"name":"Pinecone"},{"name":"OpenAI"},{"name":"Databricks"},{"name":"Facebook Ads"},{"name":"LinkedIn Ads"},{"name":"Google Ads"},{"name":"SingleStore"},{"name":"Motherduck"},{"name":"Apache Iceberg"}]` |
| language.primary | Java | - |
| license.spdx | Apache-2.0 | - |
| platform.support | `{"cli":true,"mac":true,"linux":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://flink.apache.org","retrievedAt":"2026-08-14T15:22:28.831Z"}` | `{"type":"usage","plans":[{"free":true,"name":"Developer Free","summary":"Free forever up to 10GB/month","features":["Access to Cloud Plan features","10GB/month data limit","2 concurrent connectors","Cloud deployment"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Launch your first pipelines for free","contactSales":false,"includedLimits":{"data_moved":"10GB/month","concurrent_connectors":"2"}},{"free":false,"name":"Cloud","summary":"$0.50/GB + $100/connector, billed monthly","features":["200+ fully-managed connectors","Unlimited users","Millisecond latency or batch","Role-based access control (RBAC)","Bring your own cloud storage","US/EU data processing regions","SSH tunnel support","UI and CLI management","Standard support via community Slack and email","dbt Cloud integration","Kafka compatibility","Real-time monitoring and alerting","50% discount on 6+ connectors"],"components":[{"per":{"qty":1,"unit":"gb"},"kind":"metered","amount":0.5,"currency":"USD"},{"kind":"per_unit","unit":"connector","amount":100,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Enterprise","summary":"Custom pricing with volume discounts","features":["All Cloud features","Volume-based discounts","SOC 2 & HIPAA compliance reports","Single sign-on (SSO)","Custom SLA terms","Private and BYOC deployments","Provisioned servers","Custom region support","Private networking (PrivateLink, Google Service Connect)","Performance customization/tuning","Dedicated support via Slack and email","Migration assistance","IAM and advanced authentication","Custom connector development"],"description":"Scaled Pricing","contactSales":true}],"summary":"Usage-based: $0.50/GB + $100/connector/month. Free tier: 10GB/month.","currency":"USD","freeTier":true,"sourceUrl":"https://estuary.dev","retrievedAt":"2026-08-03T14:24:35.648Z","freeTrialDays":30,"startingPrice":{"amount":0.5,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | yes |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | - | yes |
| security.disclosure_policy | yes | - |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 6.1 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.apache.flink%3Aflink-clients_2.11&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Data Engineering Tools)

| Capability | Apache Flink | Estuary Flow |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | Processing engine | ELT / ingestion |
| Processing paradigm | Batch + streaming | Batch + streaming |
| **Connectivity** |  |  |
| Connector count | 17+ | 200+ |
| CDC / log-based replication | - | ✓ |
| **Transformation** |  |  |
| In-warehouse transformation (push-down) | - | - |
| dbt-native orchestration | - | - |
| **Deployment** |  |  |
| Self-hosted / open-source available | ✓ | ✓ |
| Managed cloud available | - | ✓ |
| **Governance** |  |  |
| Data lineage / asset catalog | - | - |
| **Authoring** |  |  |
| Python-first authoring | - | - |
| **Execution** |  |  |
| Incremental / partition-aware runs | ✓ | ✓ |
| **Quality** |  |  |
| Built-in data quality / tests | - | - |
| **Scale** |  |  |
| Horizontal scale (distributed executor) | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T17:15:49.908Z. "-" = undocumented, not absent.*