Comment by vinceleo

Look at Elgg https://elgg.org This social app framework has everything you need.

Here are examples of what can be done with it: Twitter Clone - https://pw.wzm.me Marketplace - https://es.wzm.me Showcases and more - https://w.wzm.me Q&A - http://elgghacks.com Even a platform to create other apps - https://lab.wzm.me