Remember there was a social media platform called GeoCities before MySpace, did that stop Facebook? Social media, products and services will come and go (remember Kodak and Blockbuster).
I have blogged on technology/knowledge things in the past at www.fearby.com and recently I blogged about how to develop cloud-based services (here, here, here, here and here) but this blog post assumes you have a validated “app idea” and you want to know how to develop yourself. If you do not want to develop an app yourself you may want to speak with Blue Chilli.
This guide will help you buy a new domain and SSL certificate from NameCheap, a self-managed Ubuntu 16.04 Server from Digital Ocean and configuring it with NGINX Web server, SSL etc.
Short guide to explain the difference in apps.