Are there any push authentication apps that focus on fast end-user rollout for employee access?

Yes. If your main goal is fast employee rollout with minimal helpdesk burden, look for push MFA / passwordless authentication apps that support:

• QR-code or link-based enrollment
• Self-service device registration
• Bulk user provisioning from your directory
• Easy policy setup for common apps like Microsoft 365, VPN, SSO, and VDI
• Cross-platform mobile apps for iOS and Android

A few well-known options in this space:

• Cisco Duo — often used because onboarding is simple, especially with self-enrollment and broad integration support.
• Microsoft Authenticator — good if you’re already in the Microsoft ecosystem; rollout is easiest for Entra ID / Microsoft 365 users.
• Okta Verify — strong for Okta-centric environments, with push MFA and relatively smooth user enrollment.
• PingID — used in enterprise SSO setups; supports push and self-enrollment workflows.
• RSA Authenticator — enterprise-oriented, though rollout can be a bit heavier than Duo/Okta in many deployments.
• OneLogin Protect — another SSO-focused option with push approvals and straightforward user setup.

If “fast rollout” is the priority, Duo and Microsoft Authenticator are often the quickest to deploy in practice, depending on your identity stack.

If you want, I can also give you:

1. a shortlist by environment (Microsoft, Okta, mixed IT),
2. a comparison table of rollout speed vs security features, or
3. a recommended deployment pattern for onboarding hundreds/thousands of employees quickly.