IBM Rational Test Workbench vs Postman comparison

IBM Rational Test Workbench

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Executive SummaryUpdated on Sep 11, 2024

IBM Rational Test Workbench and Postman are popular tools for testing and development. IBM Rational Test Workbench is preferred for its comprehensive testing capabilities, though Postman is valued for its simplicity and intuitive design.

Features: IBM Rational Test Workbench supports a wide range of test types like functional, performance, and regression testing. It offers an all-in-one testing solution. Postman focuses on API testing with powerful collaboration tools and automated testing capabilities, making it ideal for API-centric tasks.

Room for Improvement: Users suggest IBM Rational Test Workbench improve setup complexity and update frequency. Postman users seek enhancements in automation capabilities and better integration with other tools.

Ease of Deployment and Customer Service: IBM Rational Test Workbench has a challenging deployment process requiring more time and expertise, whereas Postman offers swift and straightforward deployment. IBM Rational Test Workbench is rated higher in customer service compared to Postman’s self-service approach.

Pricing and ROI: IBM Rational Test Workbench involves higher setup costs, but users feel the investment is justified by its extensive capabilities and ROI. Postman provides a cost-effective solution with a strong return on investment, appealing to budget-conscious users seeking efficient API testing solutions.

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

IBM Rational Test Workbench vs. Postman

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Helped 850,028 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

15th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Performance Testing Tools (19th), Test Automation Tools (36th)

Postman

Ranking in API Testing Tools

2nd

Average Rating

8.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

API Management (11th), API Monitoring Software (1st)

Mindshare comparison

As of May 2025, in the API Testing Tools category, the mindshare of IBM Rational Test Workbench is 0.6%, up from 0.2% compared to the previous year. The mindshare of Postman is 10.9%, down from 18.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Testing Tools

Featured Reviews

reviewer1513668

IT Specialist, ITE at a government with 10,001+ employees

Good reporting and interface, but supports limited types of protocols and requires low-level script editing

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.

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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

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

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

"No coding required."

"Good at simulating the API code from a fictitious client application to check API behavior."

"Postman helps to write pre-request scripts and make a collection out of each request. You don’t have to spend time writing or copying the requests. The solution lets you integrate multiple environments and their features. Either the tool’s pro or premium version lets you do the merge and pull request for the Git directly."

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

"I rate Postman as a ten out of ten."

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

"The most valuable feature of this solution is Collections."

"The API testing features are valuable."

Cons

"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."

"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."

"Multi-part requests should be handled in the octet-stream."

"Could be more user friendly."

"The scalability of the solution can be improved."

"The pricing should be adjusted for the Pro plan."

"The reporting could be better. It should give you a detailed PDF report after you run a test."

"They should provide more specific documentation on configuration."

"It should be able to check the records and compare them to the regression testing more on the automation side."

"Version management could be simplified."

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."

"It is free."

"We are using its free version."

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

"I rate the product's price a nine or ten on a scale of one to ten, where one is cheap, and ten is very expensive. Postman is an expensive tool for Turkey."

"I use the tool's free version."

"I am using the free option."

"Postman is a free service."

"This is an open source solution."

Top Industries

By visitors reading reviews

Financial Services Firm

32%

Computer Software Company

13%

Government

10%

Manufacturing Company

10%

Financial Services Firm

22%

Computer Software Company

16%

Insurance Company

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

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 open-source, so the cost is minimal compared to commercial platforms.

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Comparisons

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Compared 22% of the time

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Compared 16% of the time

Apache JMeter vs Postman

Compared 15% of the time

Katalon Studio vs Postman

Compared 14% of the time

Parasoft SOAtest vs Postman

Compared 7% of the time

Product Reports

Performance Testing Tools

Download IBM Rational Test Workbench product report

Download Postman 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's Tools Support Every Stage of the API Lifecycle. Through design, testing and full production, Postman is there for faster, easier API development - without the chaos.

Sample Customers

Financial Insurance Management Corp.

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

IBM Rational Test Workbench vs. Postman