Rapid7 InsightAppSec is a commercial dynamic application security testing solution by Rapid7. ZAP The Zed Attack Proxy is a free dynamic application security testing solution. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams wanting quick setup and a clear dashboard
It is on this list because Attack Replay lets developers check a finding and its fix themselves, which keeps security out of the middle of every ticket. It fits teams of any size that need compliance reports, and the on-premises engine helps if some apps sit on closed networks. It is built on Rapid7's Insight platform, so ask what you gain if you do not use that platform today.
From Best DAST Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
DAST product for automated web app and API vulnerability scanning and testing
ZAP is an open-source web application security scanner that helps identify vulnerabilities through automated scanning and manual testing capabilities.
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Rapid7 InsightAppSec fits if you need both cloud and on-premises options.
ZAP The Zed Attack Proxy fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.
Common questions when comparing Rapid7 InsightAppSec vs ZAP The Zed Attack Proxy for dynamic application security testing.
Rapid7 InsightAppSec: DAST product for automated web app and API vulnerability scanning and testing. Built by Rapid7.
ZAP The Zed Attack Proxy: ZAP is an open-source web application security scanner that helps identify vulnerabilities through automated scanning and manual testing capabilities.
The table above shows where their features, integrations, deployment and company size fit differ.
Rapid7 InsightAppSec is made by Rapid7. ZAP The Zed Attack Proxy is open-source with 14,060 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Rapid7 InsightAppSec and ZAP The Zed Attack Proxy are both Dynamic Application Security Testing products, and both cover Web Security. Key differences: Rapid7 InsightAppSec is Commercial while ZAP The Zed Attack Proxy is Free, ZAP The Zed Attack Proxy is open-source. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best DAST Solutions for Business picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.See the shortlist