Data Theorem API Security vs Qualys TotalAppSec: side-by-side comparison (2026)

Data Theorem API Security: API security platform for discovery, testing, and runtime protection, built by Data Theorem.

Qualys TotalAppSec: Cloud-based DAST solution for web app & API security with AI-powered scanning, built by Qualys.

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

Data Theorem API Security is made by Data Theorem. Qualys TotalAppSec is made by Qualys. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

In part. Data Theorem API Security and Qualys TotalAppSec are not in the same category on CybersecTools. Both cover DAST. Use the table above to see where features, deployment and company size fit differ.