I can provide you an Open-Source LMS i.e. Moodle that is used by tens of millions people worldwide So need of any Subscription. Traditionally Its an open source software used by education institutions to provide distance learning for students. I can also provide you Moodle To Wordpress Integraton through which if anyone can purchase any course it will automatically enrol in that course and Single SIgn On (SSO) also be there so no need to login in both the system. I are also developing plugins according to your Requirements to give you better experience that plugins may include Attendance Module, Tabular or Graphical report that can easily be downloaded in excel or in pdf format. http://coursewareprovider.000webhostapp.com/