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Databases · head to head

Instaclustr vs QuestDB

Instaclustr logo

Instaclustr

Databases

NetApp-owned managed service for Cassandra, Kafka, OpenSearch, PostgreSQL and Cadence with a bring-your-own-cloud model

From
On request
Rated
-
Full reviewWebsite
QuestDB logo

QuestDB

Databases

Fast open source time-series database for high throughput ingestion

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only QuestDB has a free tier, so it costs nothing to try first.
  • Each has a real cost: Instaclustr pricing is only obtainable through a configurator or sales conversation, so comparing against AWS MSK or Confluent list prices requires several rounds of quotes rather than a spreadsheet.; QuestDB open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • They diverge on capability: Instaclustr covers Unmodified open source, QuestDB covers High Throughput Ingestion.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Instaclustr and QuestDB actually diverge.

Attributes where Instaclustr and QuestDB differ
AttributeInstaclustrQuestDB
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsCloud, LinuxDocker, Kubernetes, Cloud (AWS, Azure, GCP)
FoundedUnknown2014

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 Instaclustr

  • Unmodified open source
  • Bring your own cloud
  • Multi technology platform
  • 24/7 operations
  • Managed backups
  • Terraform provider
  • SOC 2 and compliance
  • Consulting and support

Only in QuestDB

  • High Throughput Ingestion
  • SQL Support
  • Time-series Optimization
  • SIMD Vectorization
  • Column-oriented Storage
  • Built-in Web Console
  • InfluxDB Line Protocol
  • PostgreSQL

What people use each for

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

Instaclustr

  • An enterprise running Cassandra and Kafka that cannot hire and retain specialists for bothnot QuestDB
  • A company with cloud committed spend that wants managed data infrastructure to draw down that commitment through the bring-your-own-cloud modelnot QuestDB
  • A team that left Elastic over the licence change and wants OpenSearch operated by someone else without another proprietary forknot QuestDB
  • An organisation migrating off Amazon MSK or Keyspaces that wants the same open source software with vendor operations but portability intactnot QuestDB

QuestDB

  • Time-series analytics ingesting up to 20M rows/second from IoT sensors or financial data feedsnot Instaclustr
  • Real-time dashboarding with 32ms time-to-first-row latency for minute-level analyticsnot Instaclustr
  • Applications requiring multi-tier storage (hot ingest, real-time SQL, cold Parquet archive)not Instaclustr

Where each one falls short

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

Instaclustr

  • Pricing is only obtainable through a configurator or sales conversation, so comparing against AWS MSK or Confluent list prices requires several rounds of quotes rather than a spreadsheet.
  • It manages infrastructure, not data modelling, so a poor Cassandra partition key or a mis-sized Kafka topic still causes outages that the managed service will not prevent.
  • NetApp ownership since 2022 has put the roadmap inside a large storage vendor, and the product is now one line in a portfolio rather than the whole company.
  • The catalogue is broad but each technology is served at a general level, so teams needing deep, vendor-specific tuning often find a specialist provider goes further on their one technology.
  • Bring your own cloud reduces lock-in but shifts networking, IAM and VPC peering complexity onto the customer, which needs cloud engineering capacity the managed service was meant to save.

QuestDB

  • Open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • Enterprise edition pricing not published; requires contacting sales for custom quote
  • Ingestion limit of 20M rows/sec platform-dependent; may not scale to extreme throughput requirements

Pricing, plan by plan

Instaclustr

On request
  • Instaclustr Managed Platform$undefined/month
    • Priced per node size, technology, cloud provider and region
    • Interactive calculator requires configuration before a figure appears
    • Discounts on 12 month commitment

QuestDB

Free

No published plan breakdown. See the QuestDB review.

Which should you pick?

Choose Instaclustr if

  • You need unmodified open source.
  • You work on Cloud, Linux.
  • You also want bring your own cloud.
Instaclustr review

Choose QuestDB if

  • You need high throughput ingestion.
  • You want to start without paying.
  • You work on Docker, Kubernetes, Cloud (AWS, Azure, GCP).
  • You also want sql support.
QuestDB review

Questions people ask

Is Instaclustr or QuestDB better?
Neither clearly leads. Instaclustr starts at On request and QuestDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Instaclustr or QuestDB?
QuestDB has a free tier; the other does not. Paid plans start at On request for Instaclustr and Free for QuestDB.
Does Instaclustr or QuestDB run on more platforms?
Instaclustr runs on Cloud, Linux. QuestDB runs on Docker, Kubernetes, Cloud (AWS, Azure, GCP).
Can I use QuestDB for free?
Yes. QuestDB has a free tier, so you can try it without paying. Instaclustr starts at On request.
What is Instaclustr best used for?
Instaclustr is most often used for an enterprise running cassandra and kafka that cannot hire and retain specialists for both, a company with cloud committed spend that wants managed data infrastructure to draw down that commitment through the bring-your-own-cloud model, a team that left elastic over the licence change and wants opensearch operated by someone else without another proprietary fork, an organisation migrating off amazon msk or keyspaces that wants the same open source software with vendor operations but portability intact. Of those, an enterprise running cassandra and kafka that cannot hire and retain specialists for both and a company with cloud committed spend that wants managed data infrastructure to draw down that commitment through the bring-your-own-cloud model are not what QuestDB is typically brought in for.
What can Instaclustr do that QuestDB cannot?
Instaclustr covers Unmodified open source, Bring your own cloud, Multi technology platform, 24/7 operations. QuestDB covers High Throughput Ingestion, SQL Support, Time-series Optimization, SIMD Vectorization.

Answered from the vendors’ own pages

Instaclustr: Does Instaclustr modify the open source software?

No. Its stated commitment is one hundred per cent open source with no proprietary extensions, which is the main reason licence-averse buyers choose it.

QuestDB: How much does QuestDB Enterprise cost?

QuestDB does not publish specific pricing for the Enterprise tier. Customers must contact QuestDB via their enterprise contact form to receive a custom quote.

Source
Instaclustr: Who owns Instaclustr?

NetApp, which acquired the company in 2022. It is now branded NetApp Instaclustr.

QuestDB: Does QuestDB offer a free version?

Yes, QuestDB Open Source is completely free and recommended for evaluation, prototyping, and pilot projects. Enterprise features, high availability, security, and dedicated support require the paid Enterprise tier.

Source
Instaclustr: Is pricing published?

No. There is an interactive calculator, but figures depend on technology, node size, cloud and region, and commitments are negotiated.

QuestDB: What deployment options does QuestDB offer?

QuestDB offers open source deployment, Enterprise deployment, and Bring Your Own Cloud (BYOC) deployment. Pricing details for BYOC and Enterprise tiers are not published and require direct contact with sales.

Source
Instaclustr: Can clusters run in my own cloud account?

Yes, through the bring-your-own-cloud model, so the infrastructure spend also counts toward your cloud commitment.

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