Yes, both Okta and ADManager Plus offer a Free Trial.
Okta is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
ADManager Plus is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Okta Starts at $2/User/Month whereas for ADManager Plus Starts at $595.
Some top alternatives to Okta includes Oracle Identity Management, SailPoint IdentityIQ, WSO2 Identity Server, Keycloak, Azure AD, Ping Intelligent Identity, Ping Identity, Teamstack, Auth0, Frontegg and Login-Master.
Some top alternatives to ADManager Plus includes Oracle Identity Management, SailPoint IdentityIQ, AWS IAM, Azure AD, One Identity, Idaptive Next-Gen Access, Microsoft Azure AD, Teamstack and Frontegg.