Well this is a simple student version app which have courses pursue and purchase feature .
We will have a batch specific app with batch purchase and pursue batch courses option .
right now we are focused to provide features that are related to courses right now .
Making friends and sharing activities is more of a social feature . We will need to review the demand of users what they want .If this feature is in demand then we will try to integrate it ,
Notification can be enable as explained in this topic : https://wplms.io/forums/topic/notifications/#post-10220