to implement STS Ready to run IAM product Ready to run SaaS IAM product OpenId Connect / OAuth OpenId Connect / OAuth / SAML / UMA OpenId Connect / OAuth / SAML Client & Token management only User-, Client- & Token management User-, Client- & Token management No user authentication / authorization Authentication & Authorization Authentication & Authorization Most flexible / DIY Extension points are available (Java) Very limited extension points (Webhooks) Self-hosting Self-hosting Microsoft Azure Cloud only With version 5 paid license. Free plans available for Open Source projects & small companies Free & Open Source Paid Product with support via RedHat Single-Sign on Pay per monthly active user