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OpenText Silk Test vs TestMu AI (Formerly LambdaTest) comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 18, 2026

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

OpenText Silk Test
Ranking in Functional Testing Tools
19th
Ranking in Test Automation Tools
17th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
17
Ranking in other categories
Regression Testing Tools (8th)
TestMu AI (Formerly LambdaT...
Ranking in Functional Testing Tools
7th
Ranking in Test Automation Tools
8th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
28
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Functional Testing Tools category, the mindshare of OpenText Silk Test is 2.0%, up from 0.9% compared to the previous year. The mindshare of TestMu AI (Formerly LambdaTest) is 3.1%, down from 5.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Functional Testing Tools Mindshare Distribution
ProductMindshare (%)
TestMu AI (Formerly LambdaTest)3.1%
OpenText Silk Test2.0%
Other94.9%
Functional Testing Tools
 

Featured Reviews

JG
Manager of Central Excellence at Alpura
Easy to set up with good documentation and easy management of testing cycles
The solution allows for a complete test cycle. The management of testing cycles are easy. We have good control over test cases. We can capture functional testing very easily. We're actually able to accelerate testing now and have end-to-end cycles for testing. We didn't used to have these capabilities. It's easy to automate and accelerate testing. The product offers very good cross-browser testing capabilities. We can do continuous testing and regression testing.
KK
Practice Specialist at a government with 1-10 employees
Cloud-based testing has simplified remote mobile validation and provides flexible device coverage
I was not impressed with how detailed their analytics and logs are from LambdaTest. The solution we were testing is being used because many of us are working from home. It was easy to implement because with a real phone, we have to bring a real phone to each person. Since three years ago, many employees have been working from home, so we were trying to find a solution for this challenge. We had no need to exploit the information for the analytics generated in the background. The purpose was simply to make it easy for our employees to access a phone. The downsides I noticed include that the pricing was very good, but the visual quality of the image sometimes suffers. The contrast on a real iPhone provides better contrast than with the cloud solution. The only aspect that was less favorable than on a real phone was the contrast of the color.

Quotes from Members

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

Pros

"The solution is user-friendly with respect to automation."
"The statistics that are available are very good, the solution offers very good detailed reports, and it's excellent for testing an application's performance levels."
"It speeds up testing efforts."
"The Silk4J feature is the solution's most valuable aspect."
"The feature I like most is the ease of reporting."
"Scripting is the most valuable. We are able to record and then go in and modify the script that it creates. It has a lot of generative scripts."
"The feature I like most is the ease of reporting, as you get a single frame of reporting across all the various tests and the program is very user-friendly."
"The ability to develop scripts in Visual Studio, Visual Studio integration, is the most valuable feature."
"I was really surprised by LambdaTest; it was a very good service and for the price, I think it is a very good solution."
"Using LambdaTest, we could run all our functionality tests across various browsers, OS, and resolutions."
"The most valuable feature is the real-time testing, which helps you to test your website on more than two thousand combinations of browsers and operating systems."
"It provides 2000+ browser-OS-resolution combinations to work with, which is perfect for our consulting firm, as we don't know what our clients may need."
"The most valuable features are that it's essentially on-demand, and you only focus on getting the code that needs to be executed without having to worry about the OS, hardware, etc."
"With LambdaTest, we could see improvements in identifying errors before our customer does."
"I am really glad that there are tools like LambdaTest that help freelancers like me to make sure everything is okay before finally making a website live."
"LambdaTest Selenium Grid has helped us radically reduce the manual testing effort and ensure browser compatibility."
 

Cons

"Everything is very manual. It's up to us to find out exactly what the issues are."
"The pricing is an issue, the program is very expensive. That is something that can improve."
"We moved to Ranorex because the solution did not easily scale, and we could not find good and short term third-party help."
"The initial setup is somewhat complex if you're deploying on-prem."
"The solution has a lack of compatibility with newer technologies."
"We moved to Ranorex because the solution did not easily scale, and we could not find good and short term third-party help. We needed to have a bigger pool of third-party contractors that we could draw on for specific implementations. Silk didn't have that, and we found what we needed for Ranorex here in the Houston area. It would be good if there is more community support. I don't know if Silk runs a user conference once a year and how they set up partners. We need to be able to talk to somebody more than just on the phone. It really comes right down to that. The generated automated script was highly dependent upon screen position and other keys that were not as robust as we wanted. We found the automated script generated by Ranorex and the other key information about a specific data point to be more robust. It handled the transition better when we moved from computer to computer and from one size of the application to the other size. When we restarted Silk, we typically had to recalibrate screen elements within the script. Ranorex also has some of these same issues, but when we restart, it typically is faster, which is important."
"Could be more user-friendly on the installation and configuration side."
"They should extend some of the functions that are a bit clunky and improve the integration."
"The scalability is good with Amazon, but IBM had some issues."
"For us, Cypress! It looks like the support for Cypress is not there."
"I feel that the automated screenshot testing takes a little longer on MacOS sometimes."
"LambdaTest needs to improve its speed and memory because it takes a long time to load."
"Analytics could be better because as of now, it gives basic information on test status and build status."
"I've also had some issues with the speed of certain API calls and the rendering of data. For example, when I'm onboarding data, the process can be slow."
"You cannot perform native-app testing, as they offer simulation for web testing only."
"I didn't like the solution's technical support and how they communicated and tried to fix the issues of customers like me."
 

Pricing and Cost Advice

"We paid annually. There is a purchase cost, and then there is an ongoing maintenance fee."
"Our licensing fees are on a yearly basis, and while I think that the price is quite reasonable I am not allowed to share those details."
"LambdaTest is on the cloud, offers both free and paid plans which start at $19 USD per month."
"The pricing for LambdaTest is affordable, and one of the reasons we implemented it."
"LambdaTest is priced well, which is why we migrated to it."
"It is 60% cheaper and there is no fuss in maintaining the lab, so we have more time to do the testing."
"LambdaTest's pricing is cheaper than that of other similar platforms."
"LambdaTest is paid per execution."
"It is affordable as compared to similar SaaS solutions."
"The tool is not cheap, but it is not expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Construction Company
13%
Manufacturing Company
11%
Comms Service Provider
10%
Financial Services Firm
15%
Manufacturing Company
10%
Computer Software Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise3
Large Enterprise10
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise8
Large Enterprise10
 

Questions from the Community

What is your experience regarding pricing and costs for Silk Test?
The pricing depends on the license used. The pricing is similar to others in the market.
What is your primary use case for Silk Test?
The product is used for manual, functional, and performance testing. I'm using the tool for loading data into ERP systems.
What is your experience regarding pricing and costs for LambdaTest?
The pricing of LambdaTest depends on the deal negotiated. It is cost-effective compared to competitors like BrowserStack ( /products/browserstack-reviews ) and Sauce Labs ( /products/sauce-labs-rev...
What needs improvement with LambdaTest?
I was not impressed with how detailed their analytics and logs are from LambdaTest. The solution we were testing is being used because many of us are working from home. It was easy to implement bec...
What is your primary use case for LambdaTest?
I can provide a review for one of the products that I have experience with. The kind of testing tools we use includes a real phone for testing our application, but we were searching for a cloud sol...
 

Also Known As

Segue, SilkTest, Micro Focus Silk Test
No data available
 

Interactive Demo

Demo not available
 

Overview

 

Sample Customers

Krung Thai Computer Services, Quality Kiosk, Mªller, AVG Technologies
Bringmax, Totpal, Nethhouse, Integreplanner, Cognizant, Vendisol, Clearscale, Edureka
Find out what your peers are saying about OpenText Silk Test vs. TestMu AI (Formerly LambdaTest) and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.