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Nucleus Security vs Tenable.io Web Application Scanning comparison

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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

Nucleus Security
Ranking in Application Security Tools
29th
Average Rating
7.2
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Vulnerability Management (42nd), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (12th)
Tenable.io Web Application ...
Ranking in Application Security Tools
26th
Average Rating
7.8
Reviews Sentiment
5.8
Number of Reviews
18
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Application Security Tools category, the mindshare of Nucleus Security is 0.7%, up from 0.5% compared to the previous year. The mindshare of Tenable.io Web Application Scanning is 1.2%, down from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Security Tools Mindshare Distribution
ProductMindshare (%)
Tenable.io Web Application Scanning1.2%
Nucleus Security0.7%
Other98.1%
Application Security Tools
 

Featured Reviews

reviewer2872923 - PeerSpot reviewer
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
Unified vulnerability view has improved risk-based decisions but reporting still needs work
One of the main issues with Nucleus Security is its lack of reporting capability. The user interface resembles an early 2000s application style, and although its speed is decent, it could be improved as more data is ingested. The overall appearance and feel need work, especially compared to modern applications from Rapid7, Qualys, and Tenable, which have more engaging user interfaces. The reporting capability is severely lacking; not being able to filter to granularity or have custom built queries is an annoyance that needs an overhaul. Additionally, there are bugs that have not been resolved, such as when you create a report and remove an asset, the asset still appears in the report despite not being present in the system anymore, leading to issues that need to be addressed quickly. Nucleus Security can become a difficult investment because I already have a vulnerability management solution, and I question where Nucleus Security fits with its licensing model. While I acknowledge automation has been described, it would be amazing to control the entire vulnerability management workflow from Nucleus Security without needing to log onto other systems. Having controls or actions that can be sent from the console down to the scanner for rescans would be beneficial. If Nucleus Security is going down this path, it should ensure that it becomes a one-stop shop for vulnerability management across multiple applications.
HL
Security Analyst at TOPNET
Web audits have identified vulnerabilities and now provide clear visibility into compliance gaps
We have experience with Tenable.io Web Application Scanning, and we use it as well; we have approximately ten licenses for web application scanning. We use it to find vulnerabilities, but Tenable.io Web Application Scanning does not include remediation; we remediate with other products. We use the…

Quotes from Members

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

Pros

"The best features Nucleus Security offers, in my opinion, are that it is really great in showcasing things and providing centralized vulnerability management."
"Nucleus Security has impacted my organization positively by providing a single pane view of vulnerabilities from different connectors and enabling the automation of reporting and alerting on findings that are out of due date or out of SLA."
"Nucleus Security has fundamentally changed how we manage our vulnerability lifecycle and made our entire incident response process much more proactive, organized, and reliable."
"The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms."
"The initial setup is straightforward."
"Tenable provides the end analysis results covering all the published vulnerabilities and information on the market."
"If customers need a cost-efficient way to do very good ramification scanning and vulnerability management, this is the right solution."
"The most effective feature of the product is the ability to scan the entire environment."
"Now that the license is centralized, it's a significant feature to manipulate assets based on their functions."
"The most valuable features of Tenable.io Web Application Scanning are the integration into specific use cases and scanning. All of the features of the solution are useful."
"It collects the vulnerabilities on the hostnames and sends them to the Tenable.io cloud. Tenable has its own cloud where Tenable.io is running, but there are many connectors to other cloud solutions. Tenable can do vulnerability scanning for other cloud managers such as Azure, Amazon, and so on."
"The most valuable feature is the reporting, which provides a good level of detail with respect to vulnerabilities."
 

Cons

"Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing."
"One of the main issues with Nucleus Security is its lack of reporting capability."
"On a scale of one to ten, I would rate Nucleus Security overall a six."
"While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep."
"The technical support needs improvement. Currently, it takes time, which might be due to the free version, but providing some level of support could encourage future purchase decisions."
"The reporting has a very limited customization capability."
"The dashboard could be more user-friendly."
"Sometimes it lags with different cloud environments."
"The solution's dashboards could be improved and made more user-friendly."
"The reporting in Tenable.io Web Application Scanning is not as good as the reporting in Tenable SC."
"The platform's technical support services could be better."
"I would like for them to add intervening proxy, whereby you can alter the get/put requests."
 

Pricing and Cost Advice

Information not available
"The price of the solution is reasonable compared to the competitors. The license cost is based on the number of users and the annual usage."
"I rate the product's pricing a four out of ten."
"The application is extremely affordable. There are no additional costs involved with licensing. We switched to Tenable.io Web Application Scanning from other solutions due to pricing."
"It follows the same licensing scheme as Tenable.io and Tenable. sc."
"For Tenable.io Web Application Scanning, it comes to around 6,50,000 Indian rupees, plus taxes."
"Tenable.io Web Application Scanning is expensive for small businesses."
"The pricing is okay."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Outsourcing Company
10%
Financial Services Firm
9%
Manufacturing Company
9%
Financial Services Firm
12%
Manufacturing Company
10%
Construction Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise4
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise5
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Nucleus Security?
The licensing model is straightforward, with one license across multiple assets for multiple connectors. It is always a tough ask regarding budgeting for additional security tools, but in terms of ...
What needs improvement with Nucleus Security?
While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep. When first setting up complex, multi-layered automation rules and asset groupings,...
What is your primary use case for Nucleus Security?
In the initial phase when we first brought Nucleus Security into our environment, instead of immediately pushing it into full production, I spent some time exploring the interface, connecting a few...
What needs improvement with Tenable.io Web Application Scanning?
If there were a solution, I would like to see automation and an integrated remediation solution for vulnerability or patch management.
What advice do you have for others considering Tenable.io Web Application Scanning?
I do not understand what API approach means; I do not understand this term. I think Tenable.io Web Application Scanning is the best option on the market at the moment. My review rating for this pro...
What is your experience regarding pricing and costs for Tenable.io Web Application Scanning?
I think the price is expensive. We do not have an idea of how much we have to pay approximately, but comparing to other products, Tenable.io Web Application Scanning is expensive.
 

Overview

 

Sample Customers

Information Not Available
IMDEX
Find out what your peers are saying about Nucleus Security vs. Tenable.io Web Application Scanning and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.