# Root Evidence vs Semperis Purple Knight: side-by-side comparison (2026)

[Root Evidence](https://cybersectools.com/tools/root-evidence) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Root Evidence](https://cybersectools.com/companies/root-evidence). [Semperis Purple Knight](https://cybersectools.com/tools/semperis-purple-knight) is a free [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Semperis](https://cybersectools.com/companies/semperis). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Root Evidence | Semperis Purple Knight |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Vulnerability Assessment | Vulnerability Assessment |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Root Evidence | Semperis |
| Headquarters | – | – |

### Use cases and capabilities

| | Root Evidence | Semperis Purple Knight |
|---|---|---|
| Vulnerability Prioritization | Yes | – |
| Vulnerability | Yes | – |
| Vulnerability Intelligence | Yes | – |
| Vulnerability Research | Yes | – |
| CVE | Yes | – |
| Vulnerabilities | Yes | – |
| Threat Analysis | Yes | – |
| Security Reporting | Yes | – |
| Patch Management | Yes | – |
| Active Directory | – | Yes |
| Misconfiguration | – | Yes |

### Core features

**Root Evidence**

3 features listed. Sign in on the page to see them.

**Semperis Purple Knight**

10 features listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Semperis Purple Knight](https://cybersectools.com/tools/semperis-purple-knight) fits if you are a startup or a small business and you need a free product.

## Root Evidence vs Semperis Purple Knight FAQ

Common questions when comparing Root Evidence vs Semperis Purple Knight for vulnerability assessment.

### What is the difference between Root Evidence and Semperis Purple Knight?

**Root Evidence**: Evidence-based vuln prioritization platform focused on real-world risk. Built by Root Evidence.

**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.

### Who makes Root Evidence and Semperis Purple Knight?

**Root Evidence** is made by Root Evidence. **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.

### Is Root Evidence a good alternative to Semperis Purple Knight?

Often, yes. Root Evidence and Semperis Purple Knight are both Vulnerability Assessment products. Key differences: Root Evidence is Commercial while Semperis Purple Knight is Free. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Root Evidence vs UVM: Unified Vulnerability Management](https://cybersectools.com/compare/root-evidence-vs-uvm-unified-vulnerability-management)
- [Root Evidence vs Artiphishell VulnOps Platform](https://cybersectools.com/compare/artiphishell-vulnops-platform-vs-root-evidence)
- [Root Evidence vs Deepwatch Vulnerability Management](https://cybersectools.com/compare/deepwatch-vulnerability-management-vs-root-evidence)
- [Semperis Purple Knight vs UVM: Unified Vulnerability Management](https://cybersectools.com/compare/semperis-purple-knight-vs-uvm-unified-vulnerability-management)
- [Semperis Purple Knight vs Artiphishell VulnOps Platform](https://cybersectools.com/compare/artiphishell-vulnops-platform-vs-semperis-purple-knight)
- [Semperis Purple Knight vs Deepwatch Vulnerability Management](https://cybersectools.com/compare/deepwatch-vulnerability-management-vs-semperis-purple-knight)

## Alternatives to each

- [See all Root Evidence alternatives](https://cybersectools.com/alternatives/root-evidence)
- [See all Semperis Purple Knight alternatives](https://cybersectools.com/alternatives/semperis-purple-knight)

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Source: https://cybersectools.com/compare/root-evidence-vs-semperis-purple-knight

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/root-evidence.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Root Evidence and Semperis Purple Knight: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md