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Klocwork vs Nucleus Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 23, 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

Klocwork
Ranking in Application Security Tools
17th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
25
Ranking in other categories
Static Application Security Testing (SAST) (15th), Static Code Analysis (3rd)
Nucleus Security
Ranking in Application Security Tools
36th
Average Rating
7.6
Reviews Sentiment
6.9
Number of Reviews
2
Ranking in other categories
Vulnerability Management (53rd), Risk-Based Vulnerability Management (22nd), Continuous Threat Exposure Management (CTEM) (15th)
 

Mindshare comparison

As of April 2026, in the Application Security Tools category, the mindshare of Klocwork is 1.3%, down from 1.4% compared to the previous year. The mindshare of Nucleus Security is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Security Tools Mindshare Distribution
ProductMindshare (%)
Klocwork1.3%
Nucleus Security0.6%
Other98.1%
Application Security Tools
 

Featured Reviews

KG
Manager, Quality, Functional Safety, Cybersecurity Embedded Processing at a manufacturing company with 10,001+ employees
Experience with compliance improvements and efficiency boosts but static analysis engine shows a need for enhancement
One area for improvement is that when customers use different static analysis tools, they report more issues compared to Klocwork. The static analysis engine of Klocwork has areas that need improvement. Customers using different static analysis tools report more issues than with Klocwork, indicating that Klocwork's engine is not as superior. Klocwork should be able to analyze large codebases efficiently, supporting a desktop version for periodic small delta changes before pushing to the server.
BJ
Technical Director at Entrust Software Development India
Centralized security testing has improved vulnerability remediation and compliance reporting
I recommend more enhancements focusing on penetration testing for both SSL over HTTP and non-SSL over HTTP, specifically targeting the RCP Rich Client Platform and Equinox frameworks that allow on-premises desktop applications to be tested simultaneously. I believe those would significantly improve the tool in the future. I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities. Once we build this installer—rather than just working on the codebase—sometimes, we face gaps considering the build parameters and conversions to the installer. Identifying those gaps is an area that could use improvement after the installer or desktop application testing, which would be beneficial. That is the only reason; otherwise, I could easily rate it a ten out of ten given its smooth operational process.

Quotes from Members

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

Pros

"The tool helps the team to think beforehand about corner cases or potential bugs that might arise in real-time."
"The customer support team is very responsive, proactive, and engages in conversations to ensure our needs are met."
"On-the-fly analysis and incremental analysis are the best parts of Klocwork. Currently, we are using both of these features very effectively."
"The most valuable feature of Klocwork is its reduced setup time."
"We like using the static analysis and code refactoring, which are very valuable because of our requirements to meet safety critical levels and reliability."
"On-the-fly analysis and incremental analysis are the best parts of Klocwork, and currently we are using both of these features very effectively."
"Klocwork has caught up to Fortify and surpassed them; they have a higher detection and false positive rate than Fortify does."
"The best advantage of Klocwork is the reduced setup time."
"We have seen clear compliance and risk control outcomes more than other operational metrics, including fewer process gaps during documentation and safety checks, strong consistency in following protocols for handling, traceability, and staff awareness, better audit readiness, a lower chance of procedure errors, and faster escalation when something appears out of standard, which is very important for us in the healthcare sector."
"I think the best features that Nucleus Security offers are purely the faster remediation to dev tools, which is crucial for managing, prioritizing, and fixing vulnerabilities while helping operational pipelines run these vulnerability management tools."
 

Cons

"For an improved product, we'd like to see integration with Agile DevOps and Agile methodologies."
"Even though it does the job, there's room for feature enhancements, such as integrations with Git for better tracking and notifications."
"Customers using different static analysis tools report more issues than with Klocwork, indicating that Klocwork's engine is not as superior."
"Now the only issue we have is that whenever we need to get the code we have to build it first. Then we can get the report."
"I believe it should support more languages, such as Python and JavaScript."
"The main problem is that since it only parses the code, the warnings or the problems that are given as a result of the report can sometimes require a lot of effort to analyze."
"We'd like to see integration with Agile DevOps and Agile methodologies."
"The way to define the rules is too complex."
"I choose eight as my rating primarily because of the installer app; it becomes challenging to identify the actual vulnerabilities."
"Protocols can be too complex in practice sometimes, and some processes can feel heavy and disconnected from our daily workflow."
 

Pricing and Cost Advice

"There are other solutions on the market such as Microsoft Visual Studio. They have been adding more static code analysis features that come for free. It is getting better all the time. That is one of the possibilities is that we've been considering that we may stop using the Klocwork because it doesn't give us any added value."
"The pricing for Klocwork is very competitive if you compare it from apple to apple. It has competitive pricing regarding the licensing model and the per-license cost. Klocwork isn't a high-end investment for anyone deploying it; even SMBs can afford it. The Klocwork cost per user would depend on the license type, so I'm unable to mention a ballpark figure because it would depend on the type of installation and how the deployment will be, and the nodes to give an accurate calculation or figure. The total price depends on the package, so my company could never publish pricing for Klocwork on the website. My team first collects information from potential clients on the deployment scenario, project environment, etc., before suggesting a package for Klocwork. My rating for Klocwork in terms of pricing is a five because of its flexible license models. There's a license model for every type of organization, whether small, midsize, or enterprise, so it's a five out of five for me."
"Licensing fees are paid annually, but they also have a perpetual license."
"Klocwork should not to be quite so heavy handed on the licensing for very specific programs."
"The limitation that we have is that Klocwork is licensed to certain programs, and if you want to license them to other programs, you have to pay more money."
"This solution offers competitive pricing."
"Klocwork is still tight on their licensing. If Klocwork would loosen up on the licensing, and where the license could be used, and how many different programs could be run on it, then we have several development programs that I would love to be able to use it for going forward."
"When it comes to licensing, the solution has two packages, one for a fixed and the other for a floating server, with the former being more cost effective than the latter."
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Top Industries

By visitors reading reviews
Manufacturing Company
22%
Computer Software Company
9%
Transportation Company
7%
Comms Service Provider
6%
Computer Software Company
17%
Financial Services Firm
9%
Insurance Company
6%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise2
Large Enterprise12
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Klocwork?
Klocwork's pricing seems attractive, as it uses a per-user license model that does not have a lot of overhead.
What needs improvement with Klocwork?
One area for improvement is that when customers use different static analysis tools, they report more issues compared to Klocwork. The static analysis engine of Klocwork has areas that need improve...
What is your primary use case for Klocwork?
I work on tools such as Klocwork, LDRA, as well as Jira and Confluence, focusing more on the software quality assurance aspect. We use Klocwork for coding and aggregate checks. We use it for static...
What is your experience regarding pricing and costs for Nucleus Security?
I have a good experience with that, so we don't have much problem dealing with pricing, setup, and licensing.
What needs improvement with Nucleus Security?
I think it can be improved by making it more practical, integrated, and easier for teams to apply in real-world workflow from a healthcare perspective. The main improvements I can see right now are...
What is your primary use case for Nucleus Security?
I have been using Nucleus Security for the past few years in my company, particularly in the healthcare field.I use Nucleus Security especially for understanding radiation safety, nuclear medicine,...
 

Overview

 

Sample Customers

ACCESS Co Ltd, Risk-AI, Winbond Electronics, Bristol-Myers Squibb Pharmaceutical Research Institute, University of Southern California, Alebra Technologies, SIMULIA, Risk Management Solutions, Brigham Young University, SRD, HRL
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