Overall:
(4.5)Duo Free accommodates up to 10 users and basic security for apps. This is the only plan that limits the number of users. Level up to Duo Essentials for $3 per month per user and gain important features that Free doesn’t offer, such as single sign-on, passwordless authentication, and unlimited application integrations.
The most popular plan is Duo AdvantageAccess for $6 per month per user, which includes additional functions like risk-based authentication, device health checks, adaptive access policies, machine-learning threat detection, and full-featured dashboards with comprehensive reporting. The most robust plan designed for enterprise businesses is Duo Premier for $9 per user per month. Premier builds on this menu with VPN-less remote access to private resources and a comprehensive package for complete zero-trust access.