No Option to show on posts/pages

Simple Social Icons is not a social sharing plugin. It’s for adding links to your social profiles to your site.

That would be a great option indeed, just to remind visitors where they can follow you. Now they can only see it in the widget area, where they might miss it.

@tinevdh You could modify your theme to add an “After Entry” widget area if it doesn’t already support it: https://www.carriedils.com/after-entry-widget/

That would allow you to add a Simple Social Icons widget after your posts.