By using Azure AD, users can launch all of their cloud applications from a personalized, web-based access panel or mobile app and have the same experience whether they’re working on Windows, Mac, Android or iOS devices. The Azure AD provides seamless user experience on-premises and in the Cloud and offers ways to modernize application authentication

Azure ADDS is a PaaS equivalent of running a domain controller environment. The Azure Active Directory Domain Services provide features like domain join, LDAP, NT LAN Manager (NTLM) and Kerberos authentication, which are widely used in enterprises.