Overview
ProductRatingMost Used ByProduct SummaryStarting Price
kdb+
Score 9.0 out of 10
N/A
kdb+ is a time series database from kx headquartered in Palo Alto, California, a division of First Derivatives.N/A
QuestDB
Score 10.0 out of 10
N/A
QuestDB is an open source time series database. It implements SQL and exposes a Postgres wire protocol, a REST API, and supports ingestion with InfluxDB line protocol.N/A
ReductStore
Score 0.0 out of 10
N/A
An ELT-based solution for robotics and industrial IoT data acquisition systems used to capture data in its raw form, ingest and stream data of any size-images, sensor readings, logs, files, ROS bags-and store it with time indexing and labels for ultra-fast retrieval and management.N/A
Pricing
kdb+QuestDBReductStore
Editions & Modules
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Offerings
Pricing Offerings
kdb+QuestDBReductStore
Free Trial
NoYesNo
Free/Freemium Version
NoYesYes
Premium Consulting/Integration Services
NoNoNo
Entry-level Setup FeeNo setup feeNo setup feeNo setup fee
Additional Details
More Pricing Information
Community Pulse
kdb+QuestDBReductStore
Considered Multiple Products
kdb+

No answer on this topic

QuestDB
Chose QuestDB
We were looking for time series database that will be able to handle L2 market data and came across QuestDB. From the beginning we were impressed how well the QuestDB performs and that it actually significantly outperforms all other open source TSDB on market like InfluxDB, Clic…
ReductStore

No answer on this topic

Best Alternatives
kdb+QuestDBReductStore
Small Businesses
InfluxDB
InfluxDB
Score 8.8 out of 10
InfluxDB
InfluxDB
Score 8.8 out of 10
InfluxDB
InfluxDB
Score 8.8 out of 10
Medium-sized Companies

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Enterprises

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All AlternativesView all alternativesView all alternativesView all alternatives
User Ratings
kdb+QuestDBReductStore
Likelihood to Recommend
9.0
(5 ratings)
10.0
(1 ratings)
-
(0 ratings)
Likelihood to Renew
9.0
(1 ratings)
-
(0 ratings)
-
(0 ratings)
Usability
7.0
(1 ratings)
-
(0 ratings)
-
(0 ratings)
Support Rating
3.0
(1 ratings)
-
(0 ratings)
-
(0 ratings)
Implementation Rating
1.0
(1 ratings)
-
(0 ratings)
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(0 ratings)
User Testimonials
kdb+QuestDBReductStore
Likelihood to Recommend
Kx
kdb is well suited for real time tick data and time series analytics.
Read full review
QuestDB
QuestDB is well suited for any use case where you need to store large amount of data and the performance is the key factor - for both reads and writes. So use cases like market data storage in financial industry, any kind of telemetry, etc.
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ReductSoftware
No answers on this topic
Pros
Kx
  • Time series analysis. The built-in vector operations are extremely fast. Also with the q language you can code up any customized analytical ideas quickly.
  • The database are all file based, very easy to maintain.
  • Very solid and fast interface to websocket, so you can interface with javascript easily.
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QuestDB
  • Extreme performance.
  • Super easy to use.
  • Compatibility with Influx line protocol.
  • PostgreSQL compatibility.
  • Out of order timestamps.
  • Support for multiple records with same timestamp.
  • Integration with Grafana.
  • Team responsiveness.
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ReductSoftware
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Cons
Kx
  • Run time error message readability, particularly for new users.
  • Backwards compatibility between versions.
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QuestDB
  • New project so needs a bit polishing.
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ReductSoftware
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Likelihood to Renew
Kx
switching costs
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QuestDB
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ReductSoftware
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Usability
Kx
its ok
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QuestDB
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ReductSoftware
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Support Rating
Kx
We don't use it.
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QuestDB
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ReductSoftware
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Alternatives Considered
Kx
Python is very commonly used for large data analysis and in general is much easier to pickup than kdb+. The biggest drawback of kdb+ is the learning curve.
Read full review
QuestDB
We were looking for time series database that will be able to handle L2 market data and came across QuestDB. From the beginning we were impressed how well the QuestDB performs and that it actually significantly outperforms all other open source TSDB on market like InfluxDB, ClickHouse, Timescale, etc. Apart from the excellent performance it is also super easy to use and deploy which makes the experience of using the database very pleasant - we were able to be up and running and storing data within few hours. Topic itself is the QuestDB team that is super responsive on their slack channel and always ready to help with any query. They are constantly improving the product and if there is some missing feature that is blocking you from usage they always try the best to implement such feature asap and release a new version - one of the best support I have ever seen so far in open source community.
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ReductSoftware
No answers on this topic
Return on Investment
Kx
  • It perfectly solves most of our real time tick data needs.
  • Finding good kdb resources is slightly difficult. Also new people trying to learn kdb experience a relatively longer learning curve.
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QuestDB
  • Reduced cost.
  • Increased efficiency.
  • Faster time to market.
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ReductSoftware
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ScreenShots

QuestDB Screenshots

Screenshot of Fast SQL for time seriesScreenshot of Console to query and visualize dataF