Grendel-Scan is a free security scanning solution. RoboShadow OWASP ZAP Vulnerability Scanner is a commercial security scanning solution by RoboShadow. Features, integrations, deployment and the company behind each one, side by side.
A tool for automated security scanning of web applications and manual penetration testing.
Web app & network vulnerability scanner integrating OWASP ZAP, Shodan & Nmap
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Based on what each listing shows: deployment, company size, price and open source.
Grendel-Scan fits if you need to run it on your own servers, you are a startup and you need a free product.
RoboShadow OWASP ZAP Vulnerability Scanner fits if you need both cloud and on-premises options.
Common questions when comparing Grendel-Scan vs RoboShadow OWASP ZAP Vulnerability Scanner for security scanning.
Grendel-Scan: A tool for automated security scanning of web applications and manual penetration testing.
RoboShadow OWASP ZAP Vulnerability Scanner: Web app & network vulnerability scanner integrating OWASP ZAP, Shodan & Nmap, built by RoboShadow.
The table above shows where their features, integrations, deployment and company size fit differ.
Often, yes. Grendel-Scan and RoboShadow OWASP ZAP Vulnerability Scanner are both Security Scanning products. Key differences: Grendel-Scan is Free while RoboShadow OWASP ZAP Vulnerability Scanner is Commercial. Use the table above to see where features, deployment and company size fit differ.
No Security Scanning shortlist yet. This is the closest one.
Updated 2026-11-02
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