Softwr

Databases · head to head

QuestDB vs TrendMiner

QuestDB logo

QuestDB

Databases

Fast open source time-series database for high throughput ingestion

From
Free
Rated
-
Full reviewWebsite
TrendMiner logo

TrendMiner

Manufacturing

Search-driven time series analytics for process engineers, now owned by Proemion rather than Software AG

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only QuestDB has a free tier, so it costs nothing to try first.
  • Each has a real cost: QuestDB open-source edition lacks high-availability, distributed architecture, and enterprise security features; TrendMiner ownership moved from Software AG to Proemion in a 47 million euro sale during the Silver Lake break-up, so the integration roadmap tied to webMethods and Cumulocity is gone and the new owner is far smaller.
  • They diverge on capability: QuestDB covers High Throughput Ingestion, TrendMiner covers Pattern search.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which QuestDB and TrendMiner actually diverge.

Attributes where QuestDB and TrendMiner differ
AttributeQuestDBTrendMiner
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
PlatformsDocker, Kubernetes, Cloud (AWS, Azure, GCP)Web, Windows, Linux
CategoryDatabasesManufacturing
Founded2014Unknown

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 QuestDB

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

Only in TrendMiner

  • Pattern search
  • Value-based search
  • Monitors
  • Soft sensors
  • Context items
  • Dashboards
  • Machine learning models
  • ContextHub

What people use each for

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

QuestDB

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

TrendMiner

  • Finding every prior occurrence of a heat exchanger fouling signature to estimate cleaning frequency from history rather than from a rule of thumbnot QuestDB
  • Comparing golden batches against off-spec ones in a pharmaceutical process without exporting to a data science teamnot QuestDB
  • Building a monitor that flags the early temperature signature that preceded the last three compressor tripsnot QuestDB
  • Giving a process engineer a way to answer a question in an afternoon that previously required a historian export and a spreadsheet weeknot QuestDB

Where each one falls short

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

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

TrendMiner

  • Ownership moved from Software AG to Proemion in a 47 million euro sale during the Silver Lake break-up, so the integration roadmap tied to webMethods and Cumulocity is gone and the new owner is far smaller.
  • It is built for continuous time series and handles discrete manufacturing, relational quality data and event-driven production poorly, so plants that are not continuous process get limited value.
  • Value depends entirely on historian data quality and tag naming; sites with inconsistent tag descriptions and missing asset context spend months on data preparation before the search features are usable.
  • Licensing is by named analyst user, and the population who genuinely use pattern search is small, so organisations that buy broadly pay for seats that log in occasionally.
  • It reads history but does not fix it: there is no data collection layer, so an existing historian is mandatory and TrendMiner is always an additional cost on top of it.

Pricing, plan by plan

QuestDB

Free

No published plan breakdown. See the QuestDB review.

TrendMiner

On request
  • TrendMiner$undefined/year
    • Annual subscription sized by named users and connected historian tag volume
    • Separate licence tiers for full analyst users and view-only dashboard consumers
    • Historian connectors quoted per source system

Which should you pick?

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

Choose TrendMiner if

  • You need pattern search.
  • You work on Web, Windows, Linux.
  • You also want value-based search.
TrendMiner review

Questions people ask

Is QuestDB or TrendMiner better?
Neither clearly leads. QuestDB starts at Free and TrendMiner at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, QuestDB or TrendMiner?
QuestDB has a free tier; the other does not. Paid plans start at Free for QuestDB and On request for TrendMiner.
Does QuestDB or TrendMiner run on more platforms?
QuestDB runs on Docker, Kubernetes, Cloud (AWS, Azure, GCP). TrendMiner runs on Web, Windows, Linux.
Can I use QuestDB for free?
Yes. QuestDB has a free tier, so you can try it without paying. TrendMiner starts at On request.
What is QuestDB best used for?
QuestDB is most often used for time-series analytics ingesting up to 20m rows/second from iot sensors or financial data feeds, real-time dashboarding with 32ms time-to-first-row latency for minute-level analytics, applications requiring multi-tier storage (hot ingest, real-time sql, cold parquet archive). Of those, time-series analytics ingesting up to 20m rows/second from iot sensors or financial data feeds and real-time dashboarding with 32ms time-to-first-row latency for minute-level analytics are not what TrendMiner is typically brought in for.
What can QuestDB do that TrendMiner cannot?
QuestDB covers High Throughput Ingestion, SQL Support, Time-series Optimization, SIMD Vectorization. TrendMiner covers Pattern search, Value-based search, Monitors, Soft sensors.

Answered from the vendors’ own pages

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
TrendMiner: Who owns TrendMiner now?

Proemion, a German industrial analytics company backed by Battery Ventures, which bought it from Software AG for 47 million euros in 2024.

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
TrendMiner: Does it replace my historian?

No. It connects to PI, IP.21, PHD, Exaquantum and others and reads from them. The historian remains the system of record.

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
TrendMiner: Do I need a data scientist to use it?

No, and that is the point. The pattern search and soft sensor tooling are aimed at process engineers with no coding background.

TrendMiner: Is pricing per user?

Yes, largely, with tiers for analyst and view-only access plus charges for historian connectors and data volume.

Share

Related pages

More on QuestDB

More on TrendMiner

Keep looking

Other head to heads