# Amass vs DDactic Attack Surface Discovery: side-by-side comparison (2026)

[Amass](https://cybersectools.com/tools/amass) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. [DDactic Attack Surface Discovery](https://cybersectools.com/tools/ddactic-attack-surface-discovery) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [DDactic](https://cybersectools.com/companies/ddactic). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Amass | DDactic Attack Surface Discovery |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | 14,260 | – |
| Last commit | Sep 2025 | – |
| Company | – | DDactic |
| Headquarters | – | – |

### Use cases and capabilities

| | Amass | DDactic Attack Surface Discovery |
|---|---|---|
| Reconnaissance | Yes | Yes |
| Open Source | Yes | – |
| Network Reconnaissance | Yes | – |
| Subdomain Enumeration | Yes | Yes |
| DNS Security | Yes | Yes |
| Vulnerability | – | Yes |
| DDoS | – | Yes |
| Network Scanning | – | Yes |
| Security Scanning | – | Yes |
| Port Scanning | – | Yes |
| SSL | – | Yes |
| Data Breach | – | Yes |

### Core features

**Amass**

No features listed.

**DDactic Attack Surface Discovery**

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

### Integrations

**Amass**

No integrations listed.

**DDactic Attack Surface Discovery**

12 integrations 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.

- [Amass](https://cybersectools.com/tools/amass) fits if you need to run it on your own servers, you need a free product and you want an open-source product.
- [DDactic Attack Surface Discovery](https://cybersectools.com/tools/ddactic-attack-surface-discovery) fits if you want a cloud product.

## Amass vs DDactic Attack Surface Discovery FAQ

Common questions when comparing Amass vs DDactic Attack Surface Discovery for external attack surface management.

### What is the difference between Amass and DDactic Attack Surface Discovery?

**Amass**: Amass is an open-source OWASP tool for comprehensive attack surface mapping and asset discovery through domain reconnaissance and subdomain enumeration.

**DDactic Attack Surface Discovery**: Scans domains to discover attack surface, vulnerabilities, and generate hardening. Built by DDactic.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Amass and DDactic Attack Surface Discovery?

**Amass** is open-source with 14,260 GitHub stars. **DDactic Attack Surface Discovery** is made by DDactic founded in 2026-01-01T00:00:00.000Z. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Amass a good alternative to DDactic Attack Surface Discovery?

Often, yes. Amass and DDactic Attack Surface Discovery are both External Attack Surface Management products, and both cover Subdomain Enumeration, DNS Security, Reconnaissance. Key differences: Amass is Free while DDactic Attack Surface Discovery is Commercial, Amass is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Amass vs SurfaceDiff](https://cybersectools.com/compare/amass-vs-surfacediff)
- [Amass vs MGM Security Partners recon me](https://cybersectools.com/compare/amass-vs-mgm-security-partners-recon-me)
- [Amass vs Cylana EASM](https://cybersectools.com/compare/amass-vs-cylana-easm)
- [DDactic Attack Surface Discovery vs SurfaceDiff](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff)
- [DDactic Attack Surface Discovery vs MGM Security Partners recon me](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-mgm-security-partners-recon-me)
- [DDactic Attack Surface Discovery vs Cylana EASM](https://cybersectools.com/compare/cylana-easm-vs-ddactic-attack-surface-discovery)

## Alternatives to each

- [See all Amass alternatives](https://cybersectools.com/alternatives/amass)
- [See all DDactic Attack Surface Discovery alternatives](https://cybersectools.com/alternatives/ddactic-attack-surface-discovery)

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Source: https://cybersectools.com/compare/amass-vs-ddactic-attack-surface-discovery

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

More on Amass and DDactic Attack Surface Discovery: 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