Primary Zero Trust Policy Engine vs Zscaler Zero Trust Automation: Side-by-Side Comparison (2026)

Primary Zero Trust Policy Engine: Zero Trust policy engine for enterprise user, device, data & network security. built by Primary. Core capabilities include Continuous user authentication and re-validation via policy-based workflows, RBAC for least-privilege and fine-grained access control, MFA support (Email, SMS, TOTP, DuoSecurity)..

Zscaler Zero Trust Automation: API automation platform for deploying and managing Zscaler zero trust security. built by Zscaler. Core capabilities include Unified API endpoint across Zscaler products, OAuth 2.0 secure API authorization, Role-based access control for API clients..

Both serve the Zero Trust Network Access market but differ in approach, feature depth, and target audience.

Primary Zero Trust Policy Engine differentiates with Continuous user authentication and re-validation via policy-based workflows, RBAC for least-privilege and fine-grained access control, MFA support (Email, SMS, TOTP, DuoSecurity). Zscaler Zero Trust Automation differentiates with Unified API endpoint across Zscaler products, OAuth 2.0 secure API authorization, Role-based access control for API clients.

Primary Zero Trust Policy Engine is developed by Primary. Zscaler Zero Trust Automation is developed by Zscaler. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Primary Zero Trust Policy Engine integrates with SAML, SSO, DuoSecurity, TOTP, External MDM and 5 more. Zscaler Zero Trust Automation integrates with ServiceNow, Postman. Check integration compatibility with your existing security stack before deciding.

Primary Zero Trust Policy Engine and Zscaler Zero Trust Automation serve similar Zero Trust Network Access use cases: both are Zero Trust Network Access tools, both cover RBAC. Review the feature comparison above to determine which fits your requirements.