IBM Rational Test Workbench vs ReadyAPI Test comparison

IBM and SmartBear are both solutions in the API Testing Tools category. IBM is ranked #15, while SmartBear is ranked #12. IBM holds a 2.1% mindshare in APIT, compared to SmartBear’s 4.3% mindshare. Additionally, 100% of IBM users are willing to recommend the solution, compared to 93% of SmartBear users who would recommend it.

IBM Rational Test Workbench

Read 4 IBM Rational Test Workbench reviews

883 Views
309 Comparison Views

100% willing to recommend

ReadyAPI Test

Read 31 ReadyAPI Test reviews

1,959 Views
1,156 Comparison Views

93% willing to recommend

IBM Rational Test Workbench

ReadyAPI Test

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 11, 2024

IBM Rational Test Workbench and ReadyAPI Test compete in the testing tools category. ReadyAPI Test seems to have the upper hand with its straightforward deployment and broad functionalities.

Features: IBM Rational Test Workbench is valued for its robust scripting capabilities, seamless integration with other IBM tools, and extensive test automation features. ReadyAPI Test is recognized for its easy configuration, broad protocol support, and powerful assertion functionalities.

Room for Improvement: IBM Rational Test Workbench could improve in stability, reducing resource consumption, and enhancing its user interface. ReadyAPI Test could improve its reporting capabilities, reduce initial setup complexity, and expand its documentation.

Ease of Deployment and Customer Service: IBM Rational Test Workbench deployment is often complex, yet users find the support comprehensive. ReadyAPI Test provides a straightforward deployment process and responsive customer service.

Pricing and ROI: IBM Rational Test Workbench is seen as expensive but offers reliable ROI with its vast features. ReadyAPI Test also represents a significant investment, delivering excellent value for money through its comprehensive functionalities.

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

Buyer's Guide

IBM Rational Test Workbench vs. ReadyAPI Test

December 2025

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Helped 881,707 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 (27th)

ReadyAPI Test

Ranking in API Testing Tools

12th

Average Rating

8.0

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

Functional Testing Tools (25th), Regression Testing Tools (14th)

Mindshare comparison

As of February 2026, in the API Testing Tools category, the mindshare of IBM Rational Test Workbench is 2.1%, up from 0.4% compared to the previous year. The mindshare of ReadyAPI Test is 4.3%, down from 4.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Testing Tools Market Share Distribution
Product	Market Share (%)
ReadyAPI Test	4.3%
IBM Rational Test Workbench	2.1%
Other	93.6%

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.

Read full review

Luis Sanchez

Senior Quality Assurance Test Engineer at Dormakaba

Helps in data, regression, performance, security, and functional testing

ReadyAPI Test needs to improve its reporting. While reports provide essential information when issues arise, or tests fail, having more graphical representations directly within the reports would be beneficial. It needs to improve stability and scalability as well. The tool's support is slow, and takes months to reach a solution.

Read full review

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."

"Using SoapUI's automation suites to run all our test cases saved us a lot of time. Running 300 test cases takes about three to four days. When you automate all that, it takes only two to three hours."

"We used to write our own solutions, from small scripts to task web services, so this saves us thousands of hours."

"The Pro and free version of SoapUI Pro has good technical support."

"The interface is user-friendly."

"The solution scales well."

"The most valuable features are that it is user-friendly, it's easy to use and easy to teach to others."

"The solution offers excellent integration capabilities."

"The product allows us to uncover any potential issues early on."

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."

"Grouping of the cases is not possible in SoapUI, to my knowledge. When working with critical cases or the, we were not able to group them properly. We can definitely create a suite and add them there, but within a whole suite, we have to identify them, which was not easy."

"Occasionally, when you are saving, the solution can hang."

"The UI should be improved."

"ReadyAPI Test needs to improve its reporting. While reports provide essential information when issues arise, or tests fail, having more graphical representations directly within the reports would be beneficial. It needs to improve stability and scalability as well. The tool's support is slow, and takes months to reach a solution."

"Automation features are not user-friendly."

"SoapUI Pro is a little heavy due to the number of features. Previously it was not that heavy. Now the tool is too heavy, they should work on fixing this issue because until your system has lots of resources, you won't be able to use it seamlessly. The performance of the application itself could improve."

"There aren't any plugins for UI automation. You need to make a custom code and download a job to put into the libraries. If it were panelized, then it would be straightforward. It should be in a panel of the tools, so you can add those tools as your test step in your test cases."

"If the load and bare minimum could be defined, I would give this solution a higher rating."

Pricing and Cost Advice

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

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

"The cost is not that bad."

"I think the number of users is also limited, considering how much we pay."

"ReadyAPI Test is expensive, and I rate its pricing a four out of ten."

"SoapUI Pro is open source but it has a subscription-based model which involves some more features. At the moment we are using the free version. The Pro version requires a license, and it is an annual license to use it."

"We have team members who are working in shifts, and it is not possible for us to utilize a single license on a single piece of hardware so that multiple team members can use it. We have to take out multiple licenses for each team member."

"The Pro version can be expensive for some companies. There are no costs in addition to the licensing fees."

"ReadyAPI Test is about $680 per user, per year."

"It is free of charge."

More ReadyAPI Test pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

31%

Manufacturing Company

13%

Non Profit

University

Financial Services Firm

17%

Computer Software Company

11%

Insurance Company

10%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	8
Midsize Enterprise	3
Large Enterprise	19

Comparisons

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Compared 10% of the time

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Compared 10% of the time

Apache JMeter vs IBM Rational Test Workbench

Compared 9% of the time

Postman Enterprise vs IBM Rational Test Workbench

Compared 8% of the time

Sauce Labs vs IBM Rational Test Workbench

Compared 6% of the time

More IBM Rational Test Workbench Competitors

Postman Enterprise vs ReadyAPI Test

Compared 20% of the time

Broadcom Service Virtualization vs ReadyAPI Test

Compared 10% of the time

Parasoft SOAtest vs ReadyAPI Test

Compared 7% of the time

Tricentis Tosca vs ReadyAPI Test

Compared 5% of the time

IBM DevOps Test UI vs ReadyAPI Test

Compared 3% of the time

Product Reports

Buyer's Guide

Performance Testing Tools

February 2026

Download IBM Rational Test Workbench product report

Buyer's Guide

ReadyAPI Test

January 2026

Download ReadyAPI Test product report

Also Known As

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

SoapUI NG Pro

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

For REST, SOAP and other popular API and IoT protocols, SoapUI NG Pro provides the industry's most comprehensive and easy-to-learn functional testing capabilities. Based on open core technology proven by millions of community members, SoapUI NG Pro helps you ensure that your APIs perform as intended, meet your business requirements, timeframes, and team skill sets right from day one.

SmartBear

Sample Customers

Financial Insurance Management Corp.

Apple, Cisco, FedEx, eBay, Microsoft, MasterCard, Pfizer, Nike, Oracle, Volvo, Lufthansa, Disney, HP, Intel, U.S. Air Force, Schindler

Buyer's Guide

IBM Rational Test Workbench vs. ReadyAPI Test

December 2025

Free Report: IBM Rational Test Workbench vs. ReadyAPI Test

Find out what your peers are saying about IBM Rational Test Workbench vs. ReadyAPI Test and other solutions. Updated: December 2025.

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