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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

"For anyone who does not have experience with automation, ReadyAPI provides a sense of comfort, especially for testers who find it hard to go directly into coding."
"The main advantage is that it could be integrated into different CI/CD tools, and that is something that is really valuable and helpful."
"The Excel sheet feature is good."
"My advice is that based on the flexibility of the application, the ease of use, and the price, it's definitely worth it."
"Reporting is more robust than other products because test reports can be exported in multiple ways."
"ReadyAPI enhances my workflows by allowing us to use Docker containers based on the ReadyAPI test runner."
"I would recommend ReadyAPI to others because it's user-friendly and can handle enterprise-level API testing needs."
"The most valuable features of ReadyAPI are the ready-to-use assertions and filters which can perform the validation. If we want to filter out any value, the filters are available. Apart from that database integration, if you want to go ahead and perform validation in the database layer it is possible with the ready-to-use feature available. The execution and reporting are rich features."
"Our test execution time was reduced to 16 mins from five hours when executed in parallel on multiple VMs. This has been extremely helpful!"
"LambdaTest is brilliant."
"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."
"Automation and mobile testing have improved our efficiency."
"LambdaTest Selenium Grid has helped us radically reduce the manual testing effort and ensure browser compatibility."
"The slow nature of a cloud platform was compensated with parallel testing, and now we are able to finish our testing job faster than it was before COVID."
"Stability-wise, I have not experienced any downtime or other performance issues."
"The UI is pretty clean and easy to navigate, and we were able to figure it out very quickly."
 

Cons

"Areas for improvement include the security files, endpoints, and process sessions."
"The reporting is not very robust and needs to be improved."
"I would not recommend this product, as there are better products out there."
"The product could be improved by including an inherent feature for UI automation."
"ReadyAPI's customer support isn't that great, particularly their response time."
"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 updating of event listeners for new project imports."
"I don't like how they don't have a clear way to manage tests between multiple projects."
"Version control does not work well."
"LambdaTest's technical support comes in different tiers - most issues get resolved, but there's room for improvement with critical issues."
"I feel that the automated screenshot testing takes a little longer on MacOS sometimes."
"I would like to see all of the features available in the freemium plan so that I can test them."
"Mobile application testing will be an added benefit for us if LambdaTest implements this really soon."
"Load flow compared to other stacks needs improvement."
"The downsides I noticed include that the pricing was very good, but the visual quality of the image sometimes suffers."
"You cannot perform native-app testing, as they offer simulation for web testing only."
"Mobile application testing would be helpful for us."
 

Pricing and Cost Advice

"We have approximately 12 licenses in place. There are other solutions that are more expensive than ReadyAPI that have more features, but if the scope of the project is limited to SOAP and REST service, then this is the best option."
"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."
"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."
"The pricing is very competitive."
"For each license, they charge the same amount, which is less than $1,000 for each desktop license."
"We pay $3,000 annually for a floating license. actually. That allows another person from my company to use it as well. It's a cloud-based license."
"ReadyAPI is moderately priced, with added costs for more plugins."
"This is a cheap solution when you consider the money that will be saved in testing."
"The pricing for LambdaTest is affordable, and one of the reasons we implemented it."
"It is affordable as compared to similar SaaS solutions."
"LambdaTest is on the cloud, offers both free and paid plans which start at $19 USD per month."
"LambdaTest is paid per execution."
"The pricing could be made cheaper."
"It is 60% cheaper and there is no fuss in maintaining the lab, so we have more time to do the testing."
"From the customer side, LambdaTest is cheaper for big company usage and works fine as other similar applications."
"LambdaTest is priced well, which is why we migrated to it."
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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.