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OWASP Zap vs Rapid7 AppSpider comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 8, 2024

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)
11th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
41
Ranking in other categories
No ranking in other categories
Rapid7 AppSpider
Ranking in Static Application Security Testing (SAST)
32nd
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
14
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Static Application Security Testing (SAST) category, the mindshare of OWASP Zap is 4.6%, down from 4.8% compared to the previous year. The mindshare of Rapid7 AppSpider is 0.5%, down from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Static Application Security Testing (SAST)
 

Featured Reviews

Amit Beniwal - PeerSpot reviewer
Simplifies vulnerability discovery and has high quality support
There are areas for improvement with OWASP Zap, particularly in the alignment of vulnerabilities concerning CVSS scores. Sometimes, a vulnerability initially categorized as high severity may be reduced to medium or low over time after security patches are applied. This alignment with the present severity score and CVSS score could be improved.
Rizwan-Alam - PeerSpot reviewer
Easy automated web app scanning, but gives many false positives and isn't always stable
One of the challenges I have with AppSpider is that it gives you a lot of false positives, especially when compared to other solutions. This is the main aspect that I hope to see Rapid7 improve on. Beyond reducing false positives, I would also like to see them implement better reporting features, particularly in the executive summary type of reports which need to be user-friendly and easily understood by non-technical people. The recommendations and solutions on these reports could always be improved to make them more relevant, too. Lastly, the stability isn't that great, and sometimes it becomes non-responsive. I feel like the stability of the application is very average and currently needs more work.

Quotes from Members

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

Pros

"OWASP is quite matured in identifying the vulnerabilities."
"Automatic updates and pull request analysis."
"They offer free access to some other tools."
"The product discovers more vulnerabilities compared to other tools."
"The application scanning feature is the most valuable feature."
"Fuzzer and Java APIs help a lot with our custom needs."
"The community edition updates services regularly. They add new vulnerabilities into the scanning list."
"Two features are valuable. The first one is that the scan gets completed really quickly, and the second one is that even though it searches in a limited scope, what it does in that limited scope is very good. When you use Zap for testing, you're only using it for specific aspects or you're only looking for certain things. It works very well in that limited scope."
"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 solution is highly stable, rated at ten out of ten."
"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."
"Rapid7 AppSpider is good at managing different applications. It uses applets and generates reports to cover the PCA/GDPR compliance requirements."
"I would say that it is stable, as I am not aware of any major issues."
"The initial deployment is very straightforward and simple. The product is stable if configured properly."
"One of the most valuable features of AppSpider is its broad range of authentication identification, which is a key reason for its utilization."
"When it is set up properly, it can do scanning on web apps with multiple engines automatically."
 

Cons

"There isn't too much information about it online."
"It doesn't run on absolutely every operating system."
"ZAP's integration with cloud-based CICD pipelines could be better. The scan should run through the entire pipeline."
"The reporting feature could be more descriptive."
"It needs more robust reporting tools."
"They stopped their support for a short period. They've recently started to come back again. In the early days, support was much better."
"Too many false positives; test reports could be improved."
"For scalability, I would rate OWASP Zap between four to five out of ten."
"The product should offer a GUI in Japanese and provide Japanese reports for end-users."
"There are some glitches with stability, and it is an area for improvement."
"The dashboard and interface are crucial and they need some improvement."
"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 solution is too slow. It could take a full day to scan. Competitors are much faster."
"The enterprise interface is too simple. It should be more customizable."
"AppSpider could improve in the area of integration. They need to add more integration opportunities."
"Integration could be better."
 

Pricing and Cost Advice

"The solution’s pricing is high."
"It is highly recommended as it is an open source tool."
"It's free. It's good for us because we don't know what the extent of our use will be yet. It's good to start with something free and easy to use."
"OWASP ZAP is a free tool provided by OWASP’s engineers and experts. There is an option to donate."
"This app is completely free and open source. So there is no question about any pricing."
"The tool is open source."
"It is open source, and we can scan freely."
"OWASP Zap is free to use."
"The price is pretty fair."
"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."
"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."
"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
17%
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
Financial Services Firm
17%
Computer Software Company
12%
Manufacturing Company
10%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 ...
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...
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.
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.
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.
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.
 

Also Known As

No data available
AppSpider
 

Overview

 

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
Find out what your peers are saying about OWASP Zap vs. Rapid7 AppSpider and other solutions. Updated: June 2025.
860,168 professionals have used our research since 2012.