PLUS PLAN +
The MemberMouse Social Sign On Extensions will allow new members signing up under a free membership level to sign up and login to your site using their Facebook, Twitter, Google or LinkedIn login credentials. If a member already has created an account, they will not be able to retroactively associate this account with the social sign on option. In this case, the current account would have to be canceled and a new one created through Facebook, Twitter, Google or LinkedIn.
Please note, if you are WP Engine hosting customer, read this article to learn about the issues you may have running SSO in a WP Engine hosted environment.