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InterSystems IRIS vs kdb+ comparison

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Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

InterSystems IRIS
Ranking in Relational Databases Tools
10th
Average Rating
8.2
Reviews Sentiment
4.2
Number of Reviews
8
Ranking in other categories
Database Management Systems (DBMS) (12th)
kdb+
Ranking in Relational Databases Tools
40th
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Relational Databases Tools category, the mindshare of InterSystems IRIS is 0.9%, up from 0.6% compared to the previous year. The mindshare of kdb+ is 1.0%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
InterSystems IRIS0.9%
kdb+1.0%
Other98.1%
Relational Databases Tools
 

Featured Reviews

reviewer2892648 - PeerSpot reviewer
Developer/Database Administrator at a transportation company with 201-500 employees
Robust multidimensional database has enabled smooth API integrations and modern data workflows
I think InterSystems IRIS is a continuation of the Caché legacy. Since I have been working with it since 2005 with Caché, I think it is a really amazing tool. It is a very robust and very scalable database. It is very good to work with, and I am already used to working with it. Where it falls a bit short is in the availability of manpower and professionals who work with InterSystems IRIS or Caché. There are few professionals who work with it. Another thing is the cost and the license cost. I think there could be some kind of package that could serve smaller companies and small and medium-sized companies. That would reach a larger slice of the market, because the cost to work with Caché, InterSystems IRIS, and so on is high. I would make this remark about putting together a package and a new product that could serve small and medium-sized companies. The area where InterSystems IRIS falls a bit short is in the cost and the licensing cost. The licensing cost is the main issue I have already mentioned.
Nitin Garg - PeerSpot reviewer
Vice President - Financial Services at Evalueserve
An easy-to-deploy solution that can be used for data ingestion and usage
I work for a fintech company where we create several strategies generally built on finance data, which are like one-time series data. We deal with huge bulk data on a daily basis, and we use kdb+ for data ingestion and usage The most valuable feature of kdb+ is the speed at which it returns the…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"InterSystems IRIS has had a positive impact on my organization by improving performance and data security."
"InterSystems IRIS as a database is very efficient, with its best features being its speed and high performance, along with an easy understanding of its data searching functionalities."
"The best features that InterSystems IRIS offers in my opinion are the speed in querying data, and due to our system, which requires a large query with a large volume of data, InterSystems IRIS stands out for its query speed, making my work easier."
"The best features that InterSystems IRIS offers are its capability to function as both a relational and non-relational database, with performance and speed as specific functionalities that serve as differentiators."
"The best features InterSystems IRIS offers, in my experience, include being a really powerful engine and a really good database."
"In my opinion, the best features that InterSystems IRIS offers are its very optimized database, which I found amazing, and the observability it provides for checking messages and how the data is being transferred, which I find very interesting."
"The best features InterSystems IRIS offers are its powerful database and speed, which contribute greatly to my work."
"My final observation is that everyone should use InterSystems IRIS; it is an amazing tool on the market."
"The solution returns data quickly, and data retrieval is fast in kdb+."
 

Cons

"I cannot determine a very positive impact or a beneficial result from InterSystems IRIS, although this observability part is important because we were able to find problems much faster."
"Python support can be enhanced further, as it's really clunky at the moment, considering that the use of Python is pretty much all over the world and nobody knows ObjectScript really thoroughly and deeply."
"InterSystems IRIS can be improved by addressing the lack of libraries, mainly mathematical ones, where we would save a lot of time on some formulas that we have to build by hand every time we need them."
"InterSystems IRIS can be improved since its studio is very poor."
"InterSystems IRIS could be improved, particularly the internal interface of the database."
"The area where InterSystems IRIS falls a bit short is in the cost and the licensing cost."
"The solution should have a more user-friendly user interface."
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Top Industries

By visitors reading reviews
Outsourcing Company
26%
Comms Service Provider
16%
Healthcare Company
8%
Financial Services Firm
8%
Financial Services Firm
37%
Comms Service Provider
10%
Educational Organization
6%
Energy/Utilities Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise3
Large Enterprise1
No data available
 

Questions from the Community

What needs improvement with InterSystems IRIS?
InterSystems IRIS has already improved in many areas, and I enjoy using it. My work is sufficient for what I use, and I do not have anything more specific to make InterSystems IRIS better.
What is your primary use case for InterSystems IRIS?
My main use case for InterSystems IRIS is to manage bugs in the system when they are in production. A quick, specific example of how I use InterSystems IRIS to manage bugs in production is when the...
What advice do you have for others considering InterSystems IRIS?
Regarding InterSystems IRIS's AI capabilities, I believe the governance and security are positive. In my experience with its governance and security, I feel my data is well-protected, which is a gr...
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Comparisons

 

Overview

 

Sample Customers

Global Investment Bank, Parkview Medical Center
UniCredit, AIRBUS
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