Action1 Vulnerability Management is a commercial vulnerability assessment solution by Action1. Semperis Purple Knight is a free vulnerability assessment solution by Semperis. Features, integrations, deployment and the company behind each one, side by side.
Cloud-native vuln mgmt platform with automated patching & remediation
Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning
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.
Semperis Purple Knight fits if you need a free product.
Common questions when comparing Action1 Vulnerability Management vs Semperis Purple Knight for vulnerability assessment.
Action1 Vulnerability Management: Cloud-native vuln mgmt platform with automated patching & remediation. Built by Action1.
Semperis Purple Knight: Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning. Built by Semperis.
The table above shows where their features, integrations, deployment and company size fit differ.
Action1 Vulnerability Management is made by Action1. Semperis Purple Knight is made by Semperis. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Action1 Vulnerability Management and Semperis Purple Knight are both Vulnerability Assessment products. Key differences: Action1 Vulnerability Management is Commercial while Semperis Purple Knight is Free. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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