Amass vs ctlogs.dev: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
Amass is a free external attack surface management tool. ctlogs.dev is a commercial external attack surface management tool by Apps34. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictBased on our analysis of core features, integrations, company size fit, deployment model, here is our conclusion:
Security teams building reconnaissance automation into their reconnaissance workflow should start with Amass because it outperforms commercial tools at subdomain enumeration speed and catches assets that paid solutions miss through its multi-source passive collection approach. The 14,260 GitHub stars reflect sustained adoption by practitioners who've validated it against their own external asset inventories. Skip this if you need managed threat intelligence feeds, API-based asset tagging, or risk scoring; Amass is a discovery engine, not an asset management platform.
Data verified Sep 2026
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