IBM Rational Test Workbench vs Postman Enterprise comparison

IBM and Postman are both solutions in the API Testing Tools category. IBM is ranked #16, while Postman is ranked #2 with an average rating of 8.7. IBM holds a 1.1% mindshare in APIT, compared to Postman’s 10.5% mindshare. Additionally, 100% of IBM users are willing to recommend the solution, compared to 95% of Postman users who would recommend it.

IBM Rational Test Workbench

Read 4 IBM Rational Test Workbench reviews

525 Views
236 Comparison Views

100% willing to recommend

Postman Enterprise

Read 64 Postman Enterprise reviews

4,783 Views
4,018 Comparison Views

95% willing to recommend

IBM Rational Test Workbench

Postman Enterprise

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Executive SummaryUpdated on Jul 27, 2025

IBM Rational Test Workbench and Postman Enterprise compete in the domain of software testing solutions. While both offer robust testing capabilities, Postman Enterprise appears to have the upper hand due to its extensive feature set and adaptability.

Features: IBM Rational Test Workbench supports end-to-end automated testing, integration with IBM solutions, and comprehensive enterprise testing. Postman Enterprise provides intuitive API testing, collaborative tools, and easy integration with plugins.

Room for Improvement: IBM Rational Test Workbench could enhance ease of setup and expand beyond IBM ecosystem integrations. User interface updates and simplified reporting would be beneficial. For Postman Enterprise, support for more complex testing scenarios, additional automation options, and advanced user management would improve its offering.

Ease of Deployment and Customer Service: Postman Enterprise offers a simple setup and cloud-based deployment, facilitating quick access and use. Its customer service efficiently resolves issues. IBM Rational Test Workbench, while thorough in tools, requires more time for setup and benefits from professional support services.

Pricing and ROI: IBM Rational Test Workbench involves significant initial costs but offers competitive pricing and ROI in large-scale, integrated environments. Postman Enterprise, with higher upfront costs, provides strong ROI through API testing and teamwork facilitation, making it attractive for diverse environments.

To learn more, read our detailed IBM Rational Test Workbench vs. Postman Enterprise Report (Updated: July 2025).

Buyer's Guide

IBM Rational Test Workbench vs. Postman Enterprise

July 2025

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Helped 867,021 peers since 2012

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

IBM Rational Test Workbench

Ranking in API Testing Tools

16th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Performance Testing Tools (20th), Test Automation Tools (36th)

Postman Enterprise

Ranking in API Testing Tools

2nd

Average Rating

8.2

Reviews Sentiment

6.8

Number of Reviews

Ranking in other categories

API Management (9th), API Monitoring Software (1st)

Mindshare comparison

As of September 2025, in the API Testing Tools category, the mindshare of IBM Rational Test Workbench is 1.1%, up from 0.2% compared to the previous year. The mindshare of Postman Enterprise is 10.5%, down from 15.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Testing Tools Market Share Distribution
Product	Market Share (%)
Postman Enterprise	10.5%
IBM Rational Test Workbench	1.1%
Other	88.4%

API Testing Tools

Featured Reviews

KashifJamil

CEO at Xcelliti

Good integration with other tools, stable, scales easily

There are a number of things that they can do to simplify the tools, but the most important thing that they need to do is simplify the installation. This includes the workbench as well as the other tools. In the future, I would like to see the other types of tests supported, that are not already covered in the DevOps approach. This would include, for example, penetration testing.

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Anagha Mahadik

Product Development Manager at a university with 5,001-10,000 employees

Solution simplifies web service testing with impressive speed and accessibility

It is very easy for me to use and I highly prefer it compared to SoapUI and other products for performing its job. It is more handy and faster. It has impacted us very nicely. Postman is used for free by us. I'm not sure if there might be a paid version for multiple users. It is a very good product used for development. It is easy to install, as well as to learn, particularly for new users, even if they are not developers. I taught my business analyst to use it. I just showed them once, and it was easy for them to understand. For example, I gave them the URL and request format and asked them to test independently. They were able to use it on their own and do their testing as well. It was a good experience, especially for generally smart people, like those we usually hire in our company. It is pretty easy to explain, and learning it is not complex.

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Quotes from Members

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

Pros

"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."

"This solution provides for API testing, functional UI testing, performance testing, and service virtualization."

"I have enjoyed using parameters and setting parameters while powering directly."

"This solution offers a free version."

"The solution collects scenarios and allows for testing SOAP API, REST API and API automation at the same time."

"The most valuable feature of Postman is the verification and testing of APIs."

"We can test APIs. We know if they are functional or throwing any errors."

"The solution provides visibility for PDF reports without needing to install plugins."

"It allowed us to understand the working and performance of the APIs."

"We are using the automation and performance testing tools."

Cons

"It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there. What it does, it does great, but it only gives you limited types of protocols. It supports between 8 to 15 types of protocols, whereas other test tools give you 20 to 30 types of protocols with which you can do testing and convert to script. It records Javascript-based scripts, and you got to know a little bit of Java to basically be able to edit them, but the level of editing you got to do is very low. I like that, but the ability to edit the script is not as good as Parasoft or LoadRunner, which have C-Script."

"There are a number of things that they can do to simplify the tools, but the most important thing that they need to do is simplify the installation."

"There are some limitations regarding large result sets in Postman. When dealing with several hundred records, accessing all the information can be challenging."

"An area that needs some improvement would be to allow multiple windows with different collections to be open at the same time."

"Integration should be improved with our continuation system because we use Azure DevOps separately."

"Postman could be improved by providing options for performance testing of APIs."

"One area that could be better is collection management."

"The management of endpoints' headers sometimes conflicts with APIs that require information in the body, leading to difficulties."

"We have previously used Tosca which allowed us to verify information using authentications. It would be useful if this was also possible using Postman. In a future release, Postman should connect to DB."

"I would like to have a code snippet where I can write a code and for the responses of the endpoints to be validated using my custom business conditions."

Pricing and Cost Advice

"It doesn't really concern me. Licensing is on a yearly basis."

"The pricing is a little bit on the higher side, although it is really good."

"I rate the price of Postman a four out of five."

"We are currently using the free version, but we have plans to buy a license."

"This solution offers a free version."

"The solution has moderate pricing."

"Its price is moderate as compared to other competitors. The version that we are using is not open source, so it is not free."

"This is an open source solution."

"The solution's price is reasonable."

"Postman is a free service."

More Postman Enterprise pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

30%

Manufacturing Company

13%

Non Profit

Government

Financial Services Firm

21%

Computer Software Company

15%

Insurance Company

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	9
Large Enterprise	41

Questions from the Community

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How does Postman compare with Apache JMeter?

Postman lets you easily define variables, which then get updated automatically. This is a huge time-saver and makes processes very efficient. We can also export the test cases we create and share t...

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What do you like most about Postman?

The product is easy to implement.

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What is your experience regarding pricing and costs for Postman?

Postman is much cheaper than the other tools. I am not aware of the current pricing for Postman because that's taken care of by the client; we just pay and they simply create options. On a per-pers...

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Comparisons

OpenText Functional Testing vs IBM Rational Test Workbench

Compared 26% of the time

Perfecto vs IBM Rational Test Workbench

Compared 26% of the time

Katalon Studio vs IBM Rational Test Workbench

Compared 19% of the time

More IBM Rational Test Workbench Competitors

Katalon Studio vs Postman Enterprise

Compared 14% of the time

Tricentis Tosca vs Postman Enterprise

Compared 14% of the time

ReadyAPI Test vs Postman Enterprise

Compared 13% of the time

Apache JMeter vs Postman Enterprise

Compared 13% of the time

Parasoft SOAtest vs Postman Enterprise

Compared 7% of the time

Product Reports

Buyer's Guide

Performance Testing Tools

August 2025

Download IBM Rational Test Workbench product report

Buyer's Guide

Postman Enterprise

August 2025

Download Postman Enterprise product report

Also Known As

Rational Test Workbench, IBM Rational Performance Tester, IBM Functional Tester, IBM Rational Test Virtualization Server

No data available

Overview

IBM Rational Test Workbench provides a comprehensive test automation solution for mobile applications, regression testing, integration technologies and performance and scalability testing. It helps you build intelligent and interconnected enterprise applications that can be deployed on traditional and cloud infrastructures. With Rational Test Workbench, you can significantly reduce test cycle times, moving integration testing earlier in the development lifecycle.

IBM

Postman Enterprise provides API testing capabilities with features like automation, integration, and shared environments, enhancing efficiency for REST and SOAP APIs. Teams benefit from its intuitive interface and support for automation and scripting.

Postman Enterprise is designed for API testing, supporting REST and SOAP APIs to enhance manual and automated testing. It offers endpoint validation, unit and integration testing, and data-driven testing. This platform is valued for its easy setup, flexibility in automation, and scripting, enabling collaborations through shared collections and generating reports. However, users find room for improvement in automation, integration with platforms, SOAP API testing, and collection management.

What are the key features of Postman Enterprise?

Intuitive Interface: Simplifies navigation and usage across teams.
Automation Capabilities: Speeds up testing processes.
Integration Support: Connects with tools like Jenkins and Newman.
Scripting and Version Control: Enhances collaboration.
Testing Flexibility: Supports REST and SOAP API testing.

What benefits can users expect from Postman Enterprise?

Efficiency Gains: Streamlines API testing processes.
Improved Collaboration: Facilitates teamwork through shared environments.
Better Testing Accuracy: Validates requests and responses thoroughly.

In industries relying on API development, Postman Enterprise aids in creating robust testing environments. Whether technology, finance, or healthcare, teams leverage its data-driven testing capability and collaboration features for comprehensive and accurate testing outcomes.

Postman

Sample Customers

Financial Insurance Management Corp.

PayPal, Shopify, Microsoft, Adobe, Atlassian, Twitter, BestBuy, Coursera

Buyer's Guide

IBM Rational Test Workbench vs. Postman Enterprise

July 2025

Free Report: IBM Rational Test Workbench vs. Postman Enterprise

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