OWASP Zap vs Rapid7 AppSpider comparison

OWASP and Rapid7 are both solutions in the Static Application Security Testing (SAST) category. OWASP is ranked #9 with an average rating of 8.2, while Rapid7 is ranked #31. OWASP holds a 3.4% mindshare in SAST, compared to Rapid7’s 0.7% mindshare. Additionally, 88% of OWASP users are willing to recommend the solution, compared to 100% of Rapid7 users who would recommend it.

OWASP Zap

Read 41 OWASP Zap reviews

7,440 Views
6,845 Comparison Views

88% willing to recommend

Rapid7 AppSpider

Read 14 Rapid7 AppSpider reviews

1,598 Views
975 Comparison Views

100% willing to recommend

OWASP Zap

Rapid7 AppSpider

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 8, 2024

OWASP Zap and Rapid7 AppSpider are prominent tools in the security software category. Based on feature offerings and support, Rapid7 AppSpider holds the upper hand due to its advanced features and professional support, appealing to enterprise users willing to invest for better security solutions.

Features: OWASP Zap is free and open-source with extensive community-driven features, making it suitable for small teams. It offers wide-ranging support for different scanning configurations and customizable alerts. Rapid7 AppSpider provides advanced automation, user-friendly dashboards, and enhanced vulnerability identification, catering to organizations needing comprehensive security capabilities.

Room for Improvement: OWASP Zap could enhance scanning speed, user configurations, and integration support. Rapid7 AppSpider needs to address integration enhancements, improve the accuracy of scan results by reducing false positives, and streamline its user interface for more intuitive navigation.

Ease of Deployment and Customer Service: OWASP Zap supports straightforward deployment with minimal setup requirements, though it lacks dedicated customer support. Rapid7 AppSpider involves a more intricate deployment process but provides professional support, making it attractive to enterprises seeking reliable customer service resources.

Pricing and ROI: OWASP Zap, as an open-source tool, offers low setup costs and the potential for high ROI with adequate user expertise. Rapid7 AppSpider requires a higher investment due to its commercial nature but promises strong ROI through its feature set and comprehensive support, which can be appealing for large enterprises.

To learn more, read our detailed OWASP Zap vs. Rapid7 AppSpider Report (Updated: March 2026).

Buyer's Guide

OWASP Zap vs. Rapid7 AppSpider

March 2026

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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

OWASP Zap

Ranking in Static Application Security Testing (SAST)

9th

Average Rating

7.6

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Rapid7 AppSpider

Ranking in Static Application Security Testing (SAST)

31st

Average Rating

7.8

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the Static Application Security Testing (SAST) category, the mindshare of OWASP Zap is 3.4%, down from 4.8% compared to the previous year. The mindshare of Rapid7 AppSpider is 0.7%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Static Application Security Testing (SAST) Mindshare Distribution
Product	Mindshare (%)
OWASP Zap	3.4%
Rapid7 AppSpider	0.7%
Other	95.9%

Static Application Security Testing (SAST)

Featured Reviews

Nithin-K

Technical Analyst at Hexaware Technologies Limited

Open source testing tool empowers manual activities and has room to improve integration and reporting features

The improvement that has to be done for APIs focuses on manual activities where the feature exists, but it is not at the same level as what Burp Suite does with intercepting and tools such as Postman, so it needs improvement. There are limitations with authentication levels, particularly with form-based and cookie-based authentication. However, overall, we are satisfied with OWASP Zap as there are no major issues, and improving the scan engine could be beneficial. When comparing OWASP Zap and Burp Suite, the main difference besides pricing is that OWASP Zap has limitations with reporting levels and UI, which affects its reporting capabilities, whereas Burp Suite is already advancing with new AI features and scanning capabilities that OWASP Zap seems to be lacking.

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Hiroshi Watanabe

Marketing Expert at J's communication

Clients benefit from broad authentication and effective crawling but need localization improvements

Our clients use AppSpider to address security concerns for their websites. It is particularly used by customers who require security assessments One of the most valuable features of AppSpider is its broad range of authentication identification, which is a key reason for its utilization.…

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Quotes from Members

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

Pros

"The solution is scalable."

"The OWASP's tool is free of cost, which gives it a great advantage, especially for smaller companies to make use of the tool."

"Simple to use, good user interface."

"Simple and easy to learn and master."

"One valuable feature of OWASP Zap is that it is simple to use."

"You can run it against multiple targets."

"The reporting is quite intuitive, which gives you a clear indication of what kind of vulnerability you have that you can drill down on to gather more information."

"The product discovers more vulnerabilities compared to other tools."

More OWASP Zap pros

"The setup is usually straightforward."

"AppSpider's most valuable feature is reporting - everything is stored in the local database so it can be sent to other machines."

"I like the ability the product has to detect vulnerabilities quickly, when it has been released in our environment, then displaying them to us."

"Rapid7 AppSpider is good at managing different applications. It uses applets and generates reports to cover the PCA/GDPR compliance requirements."

"The solution is highly stable, rated at ten out of ten."

"The most valuable feature of Rapid7 AppSpider is the vulnerability reporting data. Additionally, the data is reported in a convenient way rather than seeing them as a PDF. We are able to generate all the reports exactly what we want in a flexible way."

"The most valuable feature is the reporting, which is compliant with international standards."

"What I like most about AppSpider is that it's easy to use and its automated scan gives me all the details I need to know when it comes to vulnerabilities and their solutions."

More Rapid7 AppSpider pros

Cons

"Online documentation can be improved to utilize all features of ZAP and API methods to make use in automation."

"It doesn't run on absolutely every operating system."

"OWASP should work on reducing false positives by using AI and ML algorithms. They should expand their capabilities for broader coverage of business logic flaws and complex issues."

"Zap could improve by providing better reports for security and recommendations for the vulnerabilities."

"The documentation is lacking and out-of-date, it really needs more love."

"There isn't too much information about it online."

"Online documentation can be improved to utilize all features of ZAP and API methods to make use in automation."

"I'd like to see a kind of feature where we can just track what our last vulnerability was and how it has improved or not. More reports that can have some kind of base-lining, I think that would be a good feature too. I'm not sure whether it can be achieved and implement but I think that would really help."

More OWASP Zap cons

"The enterprise interface is too simple. It should be more customizable."

"AppSpider has some problems with the RAM needed while scanning."

"Integration could be better."

"Implementing Rapid7 AppSpider requires scanning and self-identification mechanisms. You can add different types of authentication to each scan."

"The performance of the solution could improve. When I compare the speed it is slower than others on the market. There are some tricks we use to help speed up the solution."

"The product needs to be able to scale for large companies, like ours. We have millions of IP addresses that need to be scanned, and the scalability is not great."

"Support response times are slow and can be improved."

"It needs better integration with mobile applications."

More Rapid7 AppSpider cons

Pricing and Cost Advice

"OWASP Zap is free to use."

"This solution is open source and free."

"The tool is open source."

"We have used the freeware version. I believe Zap only has freeware."

"The tool is open-source."

"This is an open-source solution and can be used free of charge."

"It is highly recommended as it is an open source tool."

"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."

More OWASP Zap pricing and cost advice

"It is expensive if you want to buy the Enterprise version that is able to scan multiple applications at once."

"The licensing cost depends on the number of users."

"The price of Rapid7 AppSpider cost 9,000 annually but there is limited usage. Large companies are able to negotiate a better price or a better deal for the usage with the vendor."

"The price is pretty fair."

"AppSpider is closed-source software and you need to acquire a license in order to use it."

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Top Industries

By visitors reading reviews

Computer Software Company

11%

University

Financial Services Firm

Manufacturing Company

Financial Services Firm

10%

Manufacturing Company

10%

University

10%

Computer Software Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	2
Large Enterprise	1

Questions from the Community

Is OWASP Zap better than PortSwigger Burp Suite Pro?

OWASP Zap and PortSwigger Burp Suite Pro have many similar features. OWASP Zap has web application scanning available with basic security vulnerabilities while Burp Suite Pro has it available with ...

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What do you like most about OWASP Zap?

The best feature is the Zap HUD (Heads Up Display) because the customers can use the website normally. If we scan websites with automatic scanning, and the website has a web application firewall, i...

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What is your experience regarding pricing and costs for OWASP Zap?

OWASP might be cost-effective, however, people prefer to use the free edition available as open source.

See all answers

What is your experience regarding pricing and costs for Rapid7 AppSpider?

The price is not high, but for Japanese customers, localization may incur additional costs.

See all answers

What needs improvement with Rapid7 AppSpider?

For Japanese customers, localization is needed. The product should offer a GUI in Japanese and provide Japanese reports for end-users.

See all answers

What is your primary use case for Rapid7 AppSpider?

Our clients use AppSpider to address security concerns for their websites. It is particularly used by customers who require security assessments.

See all answers

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Compared 13% of the time

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Compared 12% of the time

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Compared 8% of the time

Checkmarx One vs OWASP Zap

Compared 8% of the time

Veracode vs OWASP Zap

Compared 8% of the time

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F5 BIG-IP Local Traffic Manager (LTM) vs Rapid7 AppSpider

Compared 12% of the time

SonarQube vs Rapid7 AppSpider

Compared 10% of the time

Rapid7 InsightAppSec vs Rapid7 AppSpider

Compared 10% of the time

PortSwigger Burp Suite Professional vs Rapid7 AppSpider

Compared 9% of the time

Tenable.io Web Application Scanning vs Rapid7 AppSpider

Compared 6% of the time

More Rapid7 AppSpider Competitors

Product Reports

Buyer's Guide

OWASP Zap

March 2026

Download OWASP Zap product report

Buyer's Guide

Rapid7 AppSpider

March 2026

Download Rapid7 AppSpider product report

Also Known As

No data available

AppSpider

Overview

OWASP Zap is a free and open-source web application security scanner.

The solution helps developers identify vulnerabilities in their web applications by actively scanning for common security issues.

With its user-friendly interface and powerful features, Zap is a popular choice among developers for ensuring the security of their web applications.

OWASP

SPAs, APIs, mobile—the evolution of application technology is measured in months, not years. Is your web application security testing tool designed to keep up? AppSpider lets you collect all the information needed to test all the apps so that you aren’t left with gaping application risks.

Our dynamic application security testing (DAST) solution crawls to the deepest, darkest corners of even the most modern and complex apps to effectively test for risk and get you the insight you need to remediate faster. With AppSpider on your side (or, rather, all of your sides), you’ll be able to scan all the apps today and always be ready for whatever comes next.

Rapid7

Sample Customers

1. Google 2. Microsoft 3. IBM 4. Amazon 5. Facebook 6. Twitter 7. LinkedIn 8. Netflix 9. Adobe 10. PayPal 11. Salesforce 12. Cisco 13. Oracle 14. Intel 15. HP 16. Dell 17. VMware 18. Symantec 19. McAfee 20. Citrix 21. Red Hat 22. Juniper Networks 23. SAP 24. Accenture 25. Deloitte 26. Ernst & Young 27. PwC 28. KPMG 29. Capgemini 30. Infosys 31. Wipro 32. TCS

Microsoft

Buyer's Guide

OWASP Zap vs. Rapid7 AppSpider

March 2026

Free Report: OWASP Zap vs. Rapid7 AppSpider

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