The Social Login plugin on its own does what it’s supposed to. Provide login options to your users to your website with 3rd party services like Facebook, Twitter etc.
This integration with PeepSo goes beyond just that. It also allows importing some user profile information like: Name, Last Name, Birthdate and avatar. Right now this info is taken only from Facebook, but within the next one or two releases we should be able to add that to other providers as well.
Social Login plugin comes with its own widget which you can place anywhere. The integration with PeepSo allows displaying social login options within PeepSo itself. PeepSo Profile Widget, Landing Page and Registration.
This aspect of the plugin allows your members to invite their friends from other social networks to visit and join your site. Takes a form of a widget which you can place anywhere you like in any widget position. You can also use a shortcode:with the ‘link’ parameter to ensure the landing page for invitees. There’s also a Gutenberg Block that you can use.