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IBM Rational Test Workbench vs Sauce Labs comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 15, 2024

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 Test Automation Tools
28th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Performance Testing Tools (19th), API Testing Tools (14th)
Sauce Labs
Ranking in Test Automation Tools
17th
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
113
Ranking in other categories
Functional Testing Tools (11th)
 

Mindshare comparison

As of May 2026, in the Test Automation Tools category, the mindshare of IBM Rational Test Workbench is 1.5%, up from 0.2% compared to the previous year. The mindshare of Sauce Labs is 3.3%, up from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Test Automation Tools Mindshare Distribution
ProductMindshare (%)
Sauce Labs3.3%
IBM Rational Test Workbench1.5%
Other95.2%
Test Automation Tools
 

Featured Reviews

reviewer1513668 - PeerSpot reviewer
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.
AnupKumar4 - PeerSpot reviewer
Senior QA Automation Engineer at Xoriant
Offers good stability and robust but lacks generative AI capabilities
Technical support is equally very important. If you talk about anything deployed to production, and the project is live, customers are using that, and they might face some issues, some functional issues. That's when support people play a role in identifying the fix or the incident. Based on that, we create an incident based on the customer defect or whatever. Once the incident gets raised, the support will play a role in working on that particular incident. If it's a code-based incident, administration, or integration issue, support people play a big role in resolving those issues before reaching the exact developers.

Quotes from Members

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

Pros

"All IBM testing tools are really well integrated."
"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."
"IBM Rational integrates the testing software as Rational Test Workbench, which is quite convenient and efficient as it is able to automate the test scripts."
"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."
"Using service virtualization, we are able to accelerate the testing and development activity."
"We can now run daily and on demand automated tests."
"Sauce has all of the wanted features, from just about any major OS, any major browser, and different resolutions."
"The beyond convenience to test websites and applications on any platform necessary."
"Availability - Always ON Scalability - Run all tests in parallel Full Report - With logs, videos, and screenshots Easy connect and start up."
"All features are excellent, especially the parallel runs."
"Running tests in parallel on Sauce Labs definitely saves time and effort."
"It helped to integrate our performance testing and UAT, which helped to deliver a bug free software for our customers."
"Sauce Lab analytics helped us to get detailed knowledge on test cases execution and logs."
 

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."
"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."
"Implementing custom functions is bit tedious job, as ECMA script does not support some of the standard java-script functions, Also the Script editor window is not user friendly."
"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."
"Rational Performance Tester supports cloud technology in the version 8.7, playing test scripts back on the cloud is not stable."
"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."
"Better and programmatic controls on request/response recordings and sharing with developers."
"This product is not super scalable, because you have a very specific number of VMs that you can use."
"We encountered minor issues with stability from time to time but Sauce Labs continues to make improvements."
"Overall, I think Sauce Labs provides us with a valuable tool and resource. As far as what could be improved, I would say the overall test execution time. Some of the calls take a bit longer than I expect, for example in web browser tests; while the execution time isn't obnoxious, it could be improved so that overall tests/test suites finish faster."
"We have found that during automated testing this can be very slow. This causes inconsistencies with the tests. It's very difficult to rely on a service when you can't be sure if a test will pass or fail the next time it runs. This means building in a lot of sync time into the tests which in turn slows them down. If this speed could be improved then the service would be much better."
"Running tests in the SauceCloud can take longer than running in a local environment."
"There have been various times throughout the last month or so where the service has gone down during business hours."
"It should provide more examples of script code."
 

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."
"​Now that we have an enterprise license, we no longer have to worry about minutes each month!​"
"It could be less like pay-per-use with a lower rate."
"The number of concurrent VMs that Sauce Labs provides depends on your purchase license level."
"With respect to pricing, they did a bundled discount because we went with Sauce Labs for both mobile and browser. They were very competitive on pricing and provided a bundle discount for us as a larger customer."
"Trial the product and see if it suits your needs."
"We did initially go with Sauce Labs because of the pricing and integration."
"Try the free trial and work with a Sauce Labs representative to see what package works best for your application(s)."
"Go ahead please. Try it at a smaller scale."
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Top Industries

By visitors reading reviews
Financial Services Firm
26%
Manufacturing Company
11%
Construction Company
9%
Healthcare Company
7%
Financial Services Firm
13%
Comms Service Provider
7%
Computer Software Company
7%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise26
Large Enterprise73
 

Questions from the Community

Ask a question
Earn 20 points
What do you like most about Sauce Labs?
It has significantly enhanced our testing accuracy by approximately 50%.
What needs improvement with Sauce Labs?
Sauce Labs can include new technologies like generative AI, which can reduce the human effort in writing test cases. For example, in my current project, we reduced the time it took to complete user...
What is your primary use case for Sauce Labs?
I work as an automation engineer using Selenium WebDriver with Java, and API automation using Rest Assured with Java. I have also worked with Docker integration on AWS. Additionally, I have experie...
 

Also Known As

Rational Test Workbench, IBM Rational Performance Tester, IBM Functional Tester, IBM Rational Test Virtualization Server
No data available
 

Overview

 

Sample Customers

Financial Insurance Management Corp.
Salesforce.com, Mozilla, Zendesk, Puppet Labs, Twitter, Bank of America, Eventbrite, Bleacher Report, Okta, Intuit, Travelocity, Sharecare, CapitalOne.
Find out what your peers are saying about IBM Rational Test Workbench vs. Sauce Labs and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.