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Databases · head to head

NATS vs Fivetran HVR

NATS logo

NATS

Databases

High-performance messaging system for cloud-native applications

From
Free
Rated
-
Full reviewWebsite
Fivetran HVR logo

Fivetran HVR

Databases

Log-based change data capture for database replication and synchronization

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only NATS has a free tier, so it costs nothing to try first.
  • Each has a real cost: NATS core NATS has no persistence at all, so messages are lost if no subscriber is listening; Fivetran HVR pricing not published separately; part of Fivetran's usage model
  • They diverge on capability: NATS covers Very low latency, Fivetran HVR covers Log-based change capture.

Where they differ

Only the attributes on which NATS and Fivetran HVR actually diverge.

Attributes where NATS and Fivetran HVR differ
AttributeNATSFivetran HVR
Starting priceFreeOn request
Pricing modelOpen source, no licence feeUsage-based, integrated with Fivetran billing
Free tierYesNo
PlatformsLinux, macOS, Windows, Docker, KubernetesData Warehouse, Data Lake, Operational Databases
FoundedUnknown2012

Identical on both: user rating (Not yet rated), category (Databases).

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 NATS

  • Very low latency
  • JetStream
  • Single binary
  • Request-reply

Only in Fivetran HVR

  • Log-based change capture
  • Real-time replication
  • Schema evolution handling
  • Multi-table consistency
  • Zero-impact monitoring
  • Fivetran integration

What people use each for

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

NATS

  • Service-to-service messaging where latency is the binding constraintnot Fivetran HVR
  • Edge and IoT messaging where a lightweight broker mattersnot Fivetran HVR
  • Replacing a heavier broker when the workload does not need its guaranteesnot Fivetran HVR

Fivetran HVR

  • Real-time database replication to data warehousesnot NATS
  • Maintaining operational copies for analyticsnot NATS
  • Disaster recovery and business continuitynot NATS
  • Feeding AI systems with fresh governed datanot NATS

Where each one falls short

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

NATS

  • Core NATS has no persistence at all, so messages are lost if no subscriber is listening
  • JetStream adds the durability but also the operational complexity NATS is chosen to avoid
  • A much smaller ecosystem than Kafka or RabbitMQ, with fewer connectors and integrations
  • Fewer people know it, so hiring and existing organisational knowledge favour the alternatives

Fivetran HVR

  • Pricing not published separately; part of Fivetran's usage model
  • Requires Fivetran relationship for implementation
  • Limited standalone documentation and community resources
  • May be overkill for simple batch replication needs
  • Competitive offerings provide more transparent per-connector pricing

Pricing, plan by plan

NATS

Free
  • NATSFree
    • Full functionality
    • No usage limits
    • Community support

Fivetran HVR

On request

No published plan breakdown. See the Fivetran HVR review.

Which should you pick?

Choose NATS if

  • You need very low latency.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want jetstream.
NATS review

Choose Fivetran HVR if

  • You need log-based change capture.
  • You work on Data Warehouse, Data Lake, Operational Databases.
  • You also want real-time replication.
Fivetran HVR review

Questions people ask

Is NATS or Fivetran HVR better?
Neither clearly leads. NATS starts at Free and Fivetran HVR at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, NATS or Fivetran HVR?
NATS has a free tier; the other does not. Paid plans start at Free for NATS and On request for Fivetran HVR.
Does NATS or Fivetran HVR run on more platforms?
NATS runs on Linux, macOS, Windows, Docker, Kubernetes. Fivetran HVR runs on Data Warehouse, Data Lake, Operational Databases.
Can I use NATS for free?
Yes. NATS has a free tier, so you can try it without paying. Fivetran HVR starts at On request.
What is NATS best used for?
NATS is most often used for service-to-service messaging where latency is the binding constraint, edge and iot messaging where a lightweight broker matters, replacing a heavier broker when the workload does not need its guarantees. Of those, service-to-service messaging where latency is the binding constraint and edge and iot messaging where a lightweight broker matters are not what Fivetran HVR is typically brought in for.
What can NATS do that Fivetran HVR cannot?
NATS covers Very low latency, JetStream, Single binary, Request-reply. Fivetran HVR covers Log-based change capture, Real-time replication, Schema evolution handling, Multi-table consistency.

Answered from the vendors’ own pages

NATS: Is NATS free?

Yes, open source and CNCF-graduated. Synadia sells a managed service.

Fivetran HVR: What databases does Fivetran HVR support?

HVR supports major databases including Oracle, SQL Server, PostgreSQL, MySQL, and others that emit transaction logs.

Source
NATS: Does NATS persist messages?

Core NATS does not — it is fire-and-forget. JetStream adds persistence, streaming and replay when you need them.

Fivetran HVR: Is HVR part of standard Fivetran pricing?

Yes, HVR is integrated into Fivetran's usage-based pricing model with standard per-row-synced and transformation costs.

Source
NATS: NATS or Kafka?

NATS is far lighter and lower latency, and much simpler to run. Kafka is the answer when you need a durable replayable log and a large connector ecosystem.

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