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ReadyAPI vs StresStimulus comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 5, 2025

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 Performance Testing Tools
7th
Average Rating
7.8
Reviews Sentiment
7.0
Number of Reviews
37
Ranking in other categories
Functional Testing Tools (14th)
StresStimulus
Ranking in Performance Testing Tools
9th
Average Rating
8.0
Reviews Sentiment
7.9
Number of Reviews
3
Ranking in other categories
Load Testing Tools (9th)
 

Mindshare comparison

As of January 2026, in the Performance Testing Tools category, the mindshare of ReadyAPI is 3.3%, up from 2.9% compared to the previous year. The mindshare of StresStimulus is 2.2%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Performance Testing Tools Market Share Distribution
ProductMarket Share (%)
ReadyAPI3.3%
StresStimulus2.2%
Other94.5%
Performance 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.
Shiju Chandran - PeerSpot reviewer
Manager - Performance & Site Reliability at AssureCare LLC
Good performance testing, simple UI, and the ability to run the same script across different domains
StresStimulus simulates browser HTTP calls. I would love to see where it can also simulate a real browser to measure visually complete time. For example, to be something similar to TruClient. We run tests on SQL statements and stored procedures directly, even before integrating with UI. I wish there were a way to connect to my application DB and run SQL queries using a JDBC connection. In a world where the applications are changing every day, I hope StresStimulus comes up with an option to compare HTTP requests before and after deployment and tell me what requests have changed. This would help avoid rescripting every time, and this would be a huge deal.

Quotes from Members

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

Pros

"ReadyAPI is a versatile tool for creating multiple testing frameworks and validating various parameters seamlessly."
"When you are working in sprints, you need to have continuous feedback. ReadyAPI definitely helps in automating very fast and rapidly. We have less coding, and we can more easily define our assertions. We don't use it for full-blown performance testing, but normally if you are doing your functional testing, it gives you the request and response time. Anybody who is doing functional testing can see what the request and response times are and raise a flag based upon their business affiliates, that is, whether it is meeting their affiliates. You can identify this during functional testing."
"Reporting is more robust than other products because test reports can be exported in multiple ways."
"The most valuable features of ReadyAPI are the drag-and-drop options and the integration with versioning tool solutions, such as Git."
"It has the ability to combine it with different CI/CD tools."
"It's great for those that don't have as much exposure to programming."
"The interface is ok and they have the ability to re-load tests so that you can reuse them."
"The great thing about ReadyAPI is that it has a wide variety of functions. You can test any API that you come across. You are not limited to one type of API. It supports many APIs."
"Technical support is great."
"Designed to be a modern testing tool, StresStimulus made it easy for us to upgrade from an older deprecated testing tool and adapt to Agile DevOps testing principles by shifting left with performance testing."
"Compared to other tools, there is not a whole lot to Stress Stimulus UI. This makes it easy to use, be it while scripting, executing, or having to train someone new to the team."
 

Cons

"They have performance testing also. However, it's not that great."
"Better compatibility or more support for the older versions would be helpful."
"There are lots of options within the solution, however they are not upfront or user-friendly."
"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."
"Sometimes, if I changed something in ReadyAPI, it would not quickly pick up the change. It used to give me the same error repeatedly, and when I closed the application completely and restarted it, it would pick up that change."
"The performance in some cases needs improvement. Sometimes it requires too many resources."
"The Property Transfer capability could be more user friendly because it is a bit difficult to understand."
"ReadyAPI could improve by having dynamic validation information."
"Result analysis (snap-out tabs for side-by-side comparisons) need improvement."
"We run tests on SQL statements and stored procedures directly, even before integrating with UI. I wish there were a way to connect to my application DB and run SQL queries using a JDBC connection."
"StresStimulus has a dedicated blog where users of the tool can log new feature requests or enhancements to existing features."
 

Pricing and Cost Advice

"ReadyAPI is moderately priced, with added costs for more plugins."
"The price of the solution has been fine."
"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 price was around $6,000 for one license, but I don't remember exactly. It is definitely expensive. Our organization was planning on having multiple licenses for this year."
"We use fixed licenses, and the last time I checked, I want to say it's around $680 per seat per year."
"The solution is dynamically priced so you only pay for what you use."
"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."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
11%
Insurance Company
10%
Manufacturing Company
7%
University
14%
Comms Service Provider
12%
Hospitality Company
12%
Computer Software Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise5
Large Enterprise28
No data available
 

Questions from the Community

What do you like most about ReadyAPI?
The performance testing capabilities are very good.
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...
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Also Known As

Ready API
No data available
 

Overview

 

Sample Customers

Healthcare Data Solutions (HDS)
Information Not Available
Find out what your peers are saying about ReadyAPI vs. StresStimulus and other solutions. Updated: December 2025.
881,114 professionals have used our research since 2012.