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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 (15th)
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 (8th)
 

Mindshare comparison

As of August 2026, in the Performance Testing Tools category, the mindshare of ReadyAPI is 3.1%, up from 2.9% compared to the previous year. The mindshare of StresStimulus is 1.9%, up from 1.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Performance Testing Tools Mindshare Distribution
ProductMindshare (%)
ReadyAPI3.1%
StresStimulus1.9%
Other95.0%
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.
reviewer1924179 - PeerSpot reviewer
Customer Service Agent at Capita
Reliable with excellent support but needs better source control integration and versioning
Source control integration and versioning could be better. Currently, StresStimulus does not natively support any form of change control management. Result analysis (snap-out tabs for side-by-side comparisons) need improvement. Multiple sets of analysis results can be opened in the user interface at the same time, and comparison reports can be generated to compare some aspects of pairs of test runs. However, the interface that displays the multiple sets of results only allows a single result set to be viewed at any one time & uses tabs to switch between the individual result sets. It would be useful to have the ability to view multiple tabs at once, either side by side in the interface or by snapping tabs out of the interface into their own windows to be viewed together with others. Graphing (collect PerfMon data as part of the tests and then have the ability to create different graphs with that data after the test completes to help with analysis) could be better. Graphs and their contents have to be defined before tests are run. Often, as a result of running tests and viewing the results collected, it is necessary to have graphs showing/comparing different metrics collections than those specified before the run. Other tools collect metrics that are not tied to pre-defined graphs & allow the metrics to be used to construct graphs as required by subsequent analysis & investigation. Nested tests/test case groups/test solution files (ability to build a hierarchy of test cases/test case groups/solution files) are required. Within a StresStimulus, tests are organized in just two levels, test cases, and test case groups. As is possible with other tools, it would be helpful to have a hierarchy with multiple levels of nested test cases/test case groups (or even the solution config files themselves). It would make it easier to manage multiple sets, combinations of tests, load profiles & test mixes if a high-level solution file (or test case group) could run a collection of lower-level ones, which in turn end up executing multiple different base-level test case groups and individual test cases.

Quotes from Members

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

Pros

"With this solution, we have achieved a fifty-percent gain when it comes to writing test cases."
"The main advantage is that it could be integrated into different CI/CD tools, and that is something that is really valuable and helpful."
"It is the best tool that I have ever seen for API testing."
"It can create stress tests very fast, and some features help you do it fast."
"The most valuable features are the integration with Jira and the test management tools."
"ReadyAPI's best features are user-friendliness, smooth integration with Postman, the speed of creating test cases, and integration with customer data."
"I would say go for it. It is a really great tool. It is a game-changer because you can automate faster and quicker."
"The training for this solution is very good."
"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."
"Technical support is great."
 

Cons

"The initial setup could be less complex."
"I would not recommend this product, as there are better products out there."
"We have an older version of ReadyAPI and it's not supporting our whole tests, so we have had to migrate some or we've had difficulties running them because they're very old script."
"Based on my experience, ReadyAPI could improve by simplifying the process of scripting."
"The licensing is sometimes a barrier for our customers. You need to have separate licenses for functional tests, load testing and virtual (mock) services."
"It is challenging doing upgrades and patches because sometimes the environmental variables or suits in the projects get erased."
"They have performance testing also. However, it's not that great."
"There are lots of options within the solution, however they are not upfront or user-friendly."
"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."
"Analyzing results from test runs is proving to be challenging."
"Result analysis (snap-out tabs for side-by-side comparisons) need improvement."
 

Pricing and Cost Advice

"The solution is dynamically priced so you only pay for what you use."
"The thing with ReadyAPI is that you have to buy different licenses for different purposes."
"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."
"This is a cheap solution when you consider the money that will be saved in testing."
"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."
"For each license, they charge the same amount, which is less than $1,000 for each desktop license."
"There are costs in addition to the licensing fee. For example, if you want to add the load testing you would pay more."
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Construction Company
10%
Manufacturing Company
10%
Outsourcing Company
7%
No data available
 

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 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...
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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: August 2026.
909,725 professionals have used our research since 2012.