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ReadyAPI 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

ReadyAPI
Ranking in Functional Testing Tools
15th
Average Rating
7.8
Reviews Sentiment
7.0
Number of Reviews
37
Ranking in other categories
Performance Testing Tools (7th)
TestMu AI (Formerly LambdaT...
Ranking in Functional Testing Tools
7th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
28
Ranking in other categories
Test Automation Tools (8th)
 

Mindshare comparison

As of June 2026, in the Functional Testing Tools category, the mindshare of ReadyAPI is 1.9%, up from 1.3% 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%
ReadyAPI1.9%
Other95.0%
Functional Testing Tools
 

Featured Reviews

PK
Lead QA Engineer at Msys Technologies
Experience effective testing with flexible licensing alongside pivotal insights on essential improvements
For non-functional testing, I focus on performance and security. For performance and security tests, I used REST API, SoapUI, and JMeter. These tools help us conduct thorough testing across these dimensions. I find ReadyAPI helpful especially in overcoming security issues, as we experienced slowness in the application after merging our JAR files. For instance, if a person wants to access a university database and encounters a timeout error, we learned through ReadyAPI that the issue was due to HTML protocol limits with the payload. We fine-tuned this process to display the expected data effectively. I consider ReadyAPI a cost-effective solution because it covers three verticals without needing to purchase separate tools for security, performance, or functional testing. ReadyAPI is a versatile tool for creating multiple testing frameworks and validating various parameters seamlessly. REST API is the tool I use to test all three types of articles, meaning I validate the APIs I send to my peers or clients for functional testing, and I also perform security testing to ensure the URL and data passed through multiple components adhere to policies and user privileges. This is done through functional security testing using the REST API tool, and for performance, I ensure that applications can be accessed simultaneously by multiple users without hindrance or slowness through thorough performance 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 feature that allows you to import an API collection or a project is valuable."
"The training for this solution is very good."
"I would recommend ReadyAPI to others because it's user-friendly and can handle enterprise-level API testing needs."
"The feature I find valuable is project management, as it allows us to organize our test cases and suites inside the project and store variables as properties so they can be used across test cases and test suites at the project, test suite, or test case level."
"The dashboards are very good and consolidate all of the tests that you are performing with the client."
"The most valuable features of ReadyAPI are the scripting tools and the connectivity to external data sources, such as Excel and PDF files. There are plenty of useful features that are useful, such as automating flexibility and usability. Overall, the solution is easy to use."
"ReadyAPI is a QA testing tool, and we were able to catch many bugs because we could inject various scenarios running through our data-driven testing, which improves the quality of our products."
"ReadyAPI's best features are user-friendliness, smooth integration with Postman, the speed of creating test cases, and integration with customer data."
"Our test execution time was reduced to 16 mins from five hours when executed in parallel on multiple VMs. This has been extremely helpful!"
"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."
"The support docs are precise and you can get started with them easily."
"Builds that took days to complete with in-house infrastructure were executed in a couple of hours."
"LambdaTest made a great fit here when considering the latest browsers on the product."
"Without a doubt, LambdaTest is one of the big reasons behind our faster deployment and better team collaboration."
"I was really surprised by LambdaTest; it was a very good service and for the price, I think it is a very good solution."
"The primary feature that has significantly improved our test execution times is automation."
 

Cons

"ReadyAPI is not fully integrated with all system ecosystem tests."
"To generate a test suite in API, I had to create a separate one each time because otherwise it was just override the test. Each API had to be added separately. I thought I could just have one and then create different methods, but I had to add each API separately to create the test for that. That is an area that could be improved."
"We stopped using this solution because of issues with scalability. Performance and memory management both need to be improved because other solutions use less memory for the same amount of data."
"ReadyAPI can improve because it is limited to only SOAP and REST services. They should update the solution to include more protocols so that other people are not limited to SOAP and REST services. Other than would be able to utilize it."
"The Property Transfer capability could be more user friendly because it is a bit difficult to understand."
"I think the security testing with API could be improved as they provide limited templates."
"Areas for improvement include the security files, endpoints, and process sessions."
"If ReadyAPI had more integration with all of the big tools on the market then this would be very useful."
"Mobile application testing will be an added benefit for us if LambdaTest implements this really soon."
"The analytics over the automation dashboard can be more intuitive."
"Load flow compared to other stacks needs improvement."
"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."
"For us, Cypress! It looks like the support for Cypress is not there."
"Improvements on a platform need to happen on a timely basis...There should be some new features coming up or some performance improvisation over a period of time."
"Their smart testing module needs improvement."
"It would be nice to have an API for visual regression testing."
 

Pricing and Cost Advice

"The pricing is very competitive."
"It is expensive. Each user needs to be licensed, and there are different licenses within the product. It starts with 750 euros for a single user per year, but for the full product features, you need to pay a lot more. There are three versions. This cost is for functional testing, and then there is a cost for load testing and virtual services. If you want to use these areas with the functional test license, you are limited. You hit some limits in these functions. If you have all three licenses, then you have full functionality for the API."
"There are costs in addition to the licensing fee. For example, if you want to add the load testing you would pay more."
"The thing with ReadyAPI is that you have to buy different licenses for different purposes."
"If I remember correctly, ReadyAPI costs between $5,000 to $7,000 for five thousand virtual users running it at a given point in time. Other tools, for example, Apache JMeter, can run millions of users at a given time. ReadyAPI is a tool that requires you to pay more money if you want more users to run it for performance testing. For functional testing, each ReadyAPI license costs $1,000, and you do get basic testing, and it's inclusive of one hundred users. In my company, if there's a need for more than one hundred users, my team uses Apache JMeter because it's futile to end up paying $5,000 or $6,000 annually just for performance testing, which can be done in Apache JMeter as well. Given the circumstances, my team does performance testing only towards the end of the fiscal year when the regulatory testing of applications takes place. If I have to run ReadyAPI just for two days or just for ten or fifteen odd days, then it's not worth paying $5,000 for the license with the small number of users provided by ReadyAPI."
"The cost of a license is probably around $1,000 to $2,000. Accounting is done by my leadership. I am more into implementations and making sure all things and processes are taken care of and the frameworks are maintained and managed."
"We use fixed licenses, and the last time I checked, I want to say it's around $680 per seat per year."
"It costs approximately $200 000 Taiwan Dollars for three years."
"LambdaTest's pricing is cheaper than that of other similar platforms."
"The tool is not cheap, but it is not expensive."
"I used the product for free."
"LambdaTest is on the cloud, offers both free and paid plans which start at $19 USD per month."
"LambdaTest is paid per execution."
"From the customer side, LambdaTest is cheaper for big company usage and works fine as other similar applications."
"The product can be described as an averagely-priced solution."
"This is an affordable product."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Construction Company
9%
Manufacturing Company
9%
Insurance Company
7%
Financial Services Firm
16%
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 Business5
Midsize Enterprise5
Large Enterprise28
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise8
Large Enterprise10
 

Questions from the Community

What is your experience regarding pricing and costs for ReadyAPI?
Currently, we don't extensively use the performance testing due to license costs. License prices can be a factor in considering which technologies to adopt.
What needs improvement with ReadyAPI?
One issue I found with ReadyAPI is related to event listeners compared to JMeter or SoapUI. We created an in-house dashboard to display automation runs across projects, which required manual updati...
What is your primary use case for ReadyAPI?
My experience with Katalon Studio is that we used Katalon for one of our projects, and then I started leveraging Katalon by integrating it with AI tools, AP tools, and aptly tools. Aptly tool is an...
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

Ready API
No data available
 

Interactive Demo

Demo not available
 

Overview

 

Sample Customers

Healthcare Data Solutions (HDS)
Bringmax, Totpal, Nethhouse, Integreplanner, Cognizant, Vendisol, Clearscale, Edureka
Find out what your peers are saying about ReadyAPI vs. TestMu AI (Formerly LambdaTest) and other solutions. Updated: June 2026.
902,495 professionals have used our research since 2012.