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InterSystems IRIS vs MongoDB Atlas 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 Database Management Systems (DBMS)
10th
Average Rating
8.2
Reviews Sentiment
4.5
Number of Reviews
8
Ranking in other categories
Relational Databases Tools (14th)
MongoDB Atlas
Ranking in Database Management Systems (DBMS)
7th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
51
Ranking in other categories
Database as a Service (DBaaS) (5th), Managed NoSQL Databases (3rd), AI Software Development (14th)
 

Mindshare comparison

As of October 2026, in the Database Management Systems (DBMS) category, the mindshare of InterSystems IRIS is 2.1%, up from 1.0% compared to the previous year. The mindshare of MongoDB Atlas is 5.0%, up from 2.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database Management Systems (DBMS) Mindshare Distribution
ProductMindshare (%)
MongoDB Atlas5.0%
InterSystems IRIS2.1%
Other92.9%
Database Management Systems (DBMS)
 

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.
Lintz Veloso - PeerSpot reviewer
IT Manager at a government with 11-50 employees
Developers have benefited from flexibility and performance but pricing has needed further attention
I am only familiar with databases and applications. I am from the development team and I am a user of database and cloud but I don't know the infrastructure. As a user, I deal with the Oracle Database. I know the organization has a license with the product. We don't utilize real-time analytics with MongoDB Atlas. I don't use MongoDB Atlas directly, so I don't know how it can be improved. I would place MongoDB Atlas at a medium level. I would rate it at a six or seven. I believe MongoDB Atlas can improve a little. My overall review rating for this product is six out of ten.

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."
"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."
"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."
"My final observation is that everyone should use InterSystems IRIS; it is an amazing tool on the market."
"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."
"The most valuable feature is that it's all web-based. So one can browse collections just from the web. MongoDB Atlas is very accessible, quick to understand, and quick to learn. People who have never used CLI can hop into the web interface and browse the database."
"It is nice because our developers create tables whenever they need to sync data."
"The most beneficial MongoDB features for our workload are the ability to scale up and down using automatic sharding and clustering."
"The speed of it is the most valuable feature."
"The features that I have found most valuable include the very easy integrations. The integrations are fantastic. I have not faced any challenges from the integration standpoint."
"The product allows us to easily set up and store large amounts of unstructured data."
"The most useful feature is the management of the backup."
"MongoDB Atlas is a database that is quite fast, stable, and reliable."
 

Cons

"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."
"InterSystems IRIS could be improved, particularly the internal interface of the database."
"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."
"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."
"The speed when combining two documents is concerning."
"The product does not have ORM."
"They could explore ways to facilitate deploying MongoDB containers within the platform."
"The product's data aggregation feature needs to work faster."
"When we make transactions, they do not process in real-time and require a refresh."
"When I edit a document from a document, a lot of clicking is involved, like changing data type manually from a drop-down. It would be super nice if I could just edit the document in a JSON format. The JSON-based document editor should have a multi-language feature. Also, it would be great if there was a connect option from Google Looker Studio."
"MongoDB Atlas is effective for unstructured and semi-structured data, but when it comes to OLTP transactions, its performance declines."
"We need improved query performance."
 

Pricing and Cost Advice

Information not available
"The pricing is acceptable for enterprise tier."
"We pay for the license on a monthly basis. It's not cheap or expensive. For smaller companies, it's definitely expensive."
"The solution is fairly priced. I rate the pricing a seven out of ten."
"It is too expensive. They need to work on this."
"For our service, it was around 300 to 600 euros per month, which was acceptable for our customers."
"MongoDB Atlas is more cost-effective than Amazon DocumentDB. It also has a pay-as-you-go pricing model. Apart from the standard licensing cost, you must also pay to get MongoDB Atlas technical support, which is expensive."
"In my previous company, the product allowed use to build a database in a highly regulated environment with the ability to get distributed storage. We used MongoDB as a distributed storage to set up this environment for a critical business application with millions of dollars."
"The price of MongoDB Atlas is highly affordable."
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Top Industries

By visitors reading reviews
Outsourcing Company
31%
Comms Service Provider
17%
Healthcare Company
10%
Manufacturing Company
5%
Manufacturing Company
15%
Financial Services Firm
11%
Construction Company
10%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise3
Large Enterprise1
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise12
Large Enterprise23
 

Questions from the Community

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 ...
What is your experience regarding pricing and costs for MongoDB Atlas?
Pricing-wise, MongoDB Atlas has a pay-as-you-go strategy. The documentation for MongoDB is very good; I have learned multiple things through reading it. The free tier is M0 for $0, which is suitabl...
What needs improvement with MongoDB Atlas?
MongoDB Atlas can be improved in a few ways. While the platform is feature-rich, some advanced configuration and performance tuning options have a learning curve, especially for teams that are new ...
What is your primary use case for MongoDB Atlas?
My main use case for MongoDB Atlas is for storing and managing semi-structured or rapidly evolving data where schema flexibility is important. A good example of how I have used MongoDB Atlas for ma...
 

Also Known As

No data available
Atlas, MongoDB Atlas (pay-as-you-go)
 

Overview

 

Sample Customers

Global Investment Bank, Parkview Medical Center
Wells Fargo, Forbes, Ulta Beauty, Bosch, Sanoma, Current (a Digital Bank), ASAP Log, SBB, Zebra Technologies, Radial, Kovai, Eni, Accuhit, Cognigy, and Payload.
Find out what your peers are saying about InterSystems IRIS vs. MongoDB Atlas and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.