Thanks for your question Yume. For questions concerning the premium plugin, please contact us at help (at) ultimatelysocial (dot) com.
(However, to answer your question: only the social media platforms themselves know how often a post has been shared. Some plugins track the clicks on the share buttons – which causes concerns with GDPR – however they cannot know if the user actually shared it in the end. We suggest that you activate front-end counters so that you can see how often it has been shared, which is what our plugin provides)