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Databases · head to head

Estuary vs Helm

Estuary logo

Estuary

Databases

Real-time data integration combining streaming, CDC, and batch

From
Free
Free plan
Yes
Visit EstuaryFull review
H

Helm

Developer Tools

The package manager for Kubernetes

From
Free
Free plan
Yes
Visit HelmFull review

The short version

  • Helm is a Kubernetes package manager, licensed Apache 2.
  • Helm is free; Estuary starts at $0.5/mo.
  • Where Estuary falls short: Per-GB pricing adds up quickly for high-volume scenarios.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Estuary and Helm actually diverge.

Attributes where Estuary and Helm differ
AttributeEstuaryHelm
Pricing modelUsage-based per GB plus per-connector costOpen-source
PlatformsWeb, BYOCWeb
CategoryDatabasesDeveloper Tools

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for Helm.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Estuary

  • Real-time data delivery
  • Change data capture
  • Batch processing
  • Data transformation
  • Pre-built connectors
  • Multiple deployments
  • RBAC and monitoring

Only in Helm

Nothing recorded that Estuary does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Estuary

  • Real-time data replication to data warehousesnot Helm
  • Change data capture from operational databasesnot Helm
  • Feeding analytics and BI systems with fresh datanot Helm
  • Powering real-time AI and ML data pipelinesnot Helm

Helm

  • Kubernetes package manager and deployment toolnot Estuary

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Estuary

  • Per-GB pricing adds up quickly for high-volume scenarios
  • No transparent per-connector volume discounts below 6 connectors
  • Limited to data movement; transformation capabilities are basic
  • BYOC and private deployment requires enterprise plan
  • Smaller ecosystem compared to established alternatives

Helm

  • Contributors must sign commits under the Developer Certificate of Origin to have them accepted, per helm.sh, a process requirement not all Kubernetes tools impose

Pricing, plan by plan

Estuary

Free
  • DeveloperFree
    • 10 GB per month
    • 2 connector instances maximum
    • No credit card required
  • Cloud$0.5/gb
    • $0.50 per GB of data moved
    • $100 per connector monthly (6+ connectors $50 each)
    • 200+ connectors
  • EnterpriseOn request
    • Volume-based discounts
    • SOC 2 and HIPAA compliance
    • SSO authentication

Helm

Free

No published plan breakdown. See the Helm review.

Which should you pick?

Choose Estuary if

  • You need real-time data delivery.
  • You want to start without paying.
  • You work on Web, BYOC.
  • You also want change data capture.
Estuary review

Choose Helm if

  • You want to start without paying.
Helm review

Questions people ask

Is Estuary or Helm better?
Neither clearly leads. Estuary starts at Free and Helm at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Estuary or Helm?
Estuary starts at Free and Helm at Free.
Does Estuary or Helm run on more platforms?
Estuary runs on Web, BYOC. Helm runs on Web.
Can I use Estuary for free?
Both have a free tier, so you can try either at no cost before committing.
What is Estuary best used for?
Estuary is most often used for real-time data replication to data warehouses, change data capture from operational databases, feeding analytics and bi systems with fresh data, powering real-time ai and ml data pipelines. Of those, real-time data replication to data warehouses and change data capture from operational databases are not what Helm is typically brought in for.
What can Estuary do that Helm cannot?
Estuary covers Real-time data delivery, Change data capture, Batch processing, Data transformation.

Answered from the vendors’ own pages

Estuary: What is included in the free Developer plan?

Developer plan ($0/month) includes 10 GB of data per month and up to 2 connector instances, no credit card required.

Source
Helm: How much does Helm cost?

Helm is free and open-source. It is a graduated project in the Cloud Native Computing Foundation (CNCF) with no commercial pricing model.

Source
Estuary: How is data pricing calculated on Cloud plan?

Cloud plan charges $0.50 per GB of data moved plus $100/month per connector for the first 6 connectors, then $50/month for additional connectors.

Source
Estuary: What discount is available when adding 6+ connectors?

When using 6 or more connectors, the per-connector cost drops to $50/month from $100/month, saving $50 per additional connector.

Source
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