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Citus Data vs InterSystems IRIS 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

Citus Data
Ranking in Relational Databases Tools
32nd
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
3
Ranking in other categories
No ranking in other categories
InterSystems IRIS
Ranking in Relational Databases Tools
27th
Average Rating
8.2
Reviews Sentiment
4.5
Number of Reviews
7
Ranking in other categories
Database Management Systems (DBMS) (15th)
 

Mindshare comparison

As of September 2026, in the Relational Databases Tools category, the mindshare of Citus Data is 2.0%, down from 2.6% compared to the previous year. The mindshare of InterSystems IRIS is 0.9%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
InterSystems IRIS0.9%
Citus Data2.0%
Other97.1%
Relational Databases Tools
 

Featured Reviews

Arucy Lionel - PeerSpot reviewer
Co-Founder at Afriziki
Efficiently handles high-traffic scenarios and compatible with PostgreSQL extensions, offering flexibility in database management
There are many areas of improvement , especially in terms of DDL query routing. Even though it's masterless, DDL queries need to be sent to the coordinator node. Also, setting up a multi-node environment could be more straightforward. Currently, setting up a multi-node environment is challenging. It's a bit tricky. Installation on each PostgreSQL node can lead to communication issues between nodes. An automatic rebalancing feature would be a significant improvement. Currently, I have to manually command the rebalance. It would be more convenient if it was rebalanced automatically. The dashboard and monitoring capabilities are good, but it would be helpful to have an integrated availability dashboard.
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.

Quotes from Members

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

Pros

"Its distributed processing capabilities are a standout feature. It requires minimal changes to get up and running if you already have a system on PostgreSQL. Citus can run in its natural state."
"It's very straightforward to implement the solution. It took us two days to set up everything."
"You can use Citus Data to write complex scripts. I like its version upgrades and disaster recovery as well."
"The solution is competitive with Mongo, MySQL, and maybe even Oracle."
"The best features InterSystems IRIS offers are its powerful database and speed, which contribute greatly to my work."
"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."
"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."
"My final observation is that everyone should use InterSystems IRIS; it is an amazing tool on the market."
"InterSystems IRIS has had a positive impact on my organization by improving performance and data security."
"The best features InterSystems IRIS offers, in my experience, include being a really powerful engine and a really good database."
"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."
 

Cons

"Citus Data needs to improve its stability. Do not consider this product if you have the budget. It is still developing and has a lot of issues."
"There are many areas of improvement , especially in terms of DDL query routing. Even though it's masterless, DDL queries need to be sent to the coordinator node. Also, setting up a multi-node environment could be more straightforward."
"More features in monitoring and the reporting could make it better."
"InterSystems IRIS can be improved since its studio is very poor."
"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."
"The area where InterSystems IRIS falls a bit short is in the cost and the licensing cost."
"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."
"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."
 

Pricing and Cost Advice

"Citus Data is an open-source product."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Construction Company
13%
Comms Service Provider
10%
Financial Services Firm
9%
Outsourcing Company
30%
Comms Service Provider
18%
Healthcare Company
11%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise3
Large Enterprise1
 

Questions from the Community

Ask a question
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What needs improvement with InterSystems IRIS?
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 ...
What is your primary use case for InterSystems IRIS?
My main use case for InterSystems IRIS is hospital integrations. In hospital integrations, I use InterSystems IRIS for object conversions. Regarding this use case, I utilize TCP/IP, REST, and SOAP ...
What advice do you have for others considering InterSystems IRIS?
My advice to others who are considering using InterSystems IRIS is to use it without fear, take advantage of all the platform's resources, and follow the community that has many tips and solutions ...
 

Comparisons

 

Overview

 

Sample Customers

Cloud Flare, Agari, Mix Rank, Heap
Global Investment Bank, Parkview Medical Center
Find out what your peers are saying about Citus Data vs. InterSystems IRIS and other solutions. Updated: September 2026.
914,351 professionals have used our research since 2012.