Softwr

Business Intelligence · head to head

Quantum Metric vs QuestDB

Quantum Metric logo

Quantum Metric

Business Intelligence

Continuous product design platform

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: Quantum Metric only enterprise plans are offered and the pricing page publishes no rate, no session volume tier and no minimum; QuestDB open-source edition lacks high-availability, distributed architecture, and enterprise security features
  • They diverge on capability: Quantum Metric covers Session Replay, QuestDB covers High Throughput Ingestion.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Quantum Metric and QuestDB actually diverge.

Attributes where Quantum Metric and QuestDB differ
AttributeQuantum MetricQuestDB
Starting priceOn requestFree
Pricing modelsubscriptionopen-source
Free tierNoYes
PlatformsWeb, MobileDocker, Kubernetes, Cloud (AWS, Azure, GCP)
CategoryBusiness IntelligenceDatabases
Founded20152014

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

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 Quantum Metric

  • Session Replay
  • Opportunity Analysis
  • Anomaly Detection
  • Real-time Alerts
  • Impact Scoring
  • Adobe Analytics
  • Google Analytics
  • Salesforce

Only in QuestDB

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

Both cover

  • Web support

What people use each for

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

Quantum Metric

  • Session replay and digital experience analytics for large web and mobile propertiesnot QuestDB
  • Quantifying friction and conversion loss in checkout and signup flowsnot QuestDB
  • Streaming behavioural insights into a data warehousenot QuestDB

QuestDB

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

Where each one falls short

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

Quantum Metric

  • Only enterprise plans are offered and the pricing page publishes no rate, no session volume tier and no minimum
  • The page states plans are built around your business, with the only routes being a personalised discussion, a live demo or product tours
  • There is no self-serve tier, free plan or trial published

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

Quantum Metric

On request
  • CustomFree
    • Full Platform
    • Real-time Analytics
    • Enterprise Support

QuestDB

Free

No published plan breakdown. See the QuestDB review.

Which should you pick?

Choose Quantum Metric if

  • You need session replay.
  • You work on Web, Mobile.
  • You also want opportunity analysis.
Quantum Metric 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 Quantum Metric or QuestDB better?
Neither clearly leads. Quantum Metric 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, Quantum Metric or QuestDB?
QuestDB has a free tier; the other does not. Paid plans start at On request for Quantum Metric and Free for QuestDB.
Does Quantum Metric or QuestDB run on more platforms?
Quantum Metric runs on Web, Mobile. 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. Quantum Metric starts at On request.
What is Quantum Metric best used for?
Quantum Metric is most often used for session replay and digital experience analytics for large web and mobile properties, quantifying friction and conversion loss in checkout and signup flows, streaming behavioural insights into a data warehouse. Of those, session replay and digital experience analytics for large web and mobile properties and quantifying friction and conversion loss in checkout and signup flows are not what QuestDB is typically brought in for.
What can Quantum Metric do that QuestDB cannot?
Quantum Metric covers Session Replay, Opportunity Analysis, Anomaly Detection, Real-time Alerts. QuestDB covers High Throughput Ingestion, SQL Support, Time-series Optimization, SIMD Vectorization. Both handle Web support.

Answered from the vendors’ own pages

Quantum Metric: How much does Quantum Metric cost?

Quantum Metric uses custom pricing based on annual session volume, number of digital properties monitored, and product add-ons. Exact costs require contacting the sales team.

Source
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
Quantum Metric: Does Quantum Metric offer a free trial?

The pricing page does not mention a free trial option. Interested parties must request a demo to discuss pricing and obtain a custom quote.

Source
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
Quantum Metric: What factors affect Quantum Metric pricing?

Pricing scales with digital properties (websites and applications monitored), session volume (data collected and analyzed), and customer success tier selected. Add-on products like employee experience, data enrichment, and data streaming have separate pricing considerations.

Source
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
Share

Related pages

More on Quantum Metric

More on QuestDB

Keep looking

Other head to heads