What is Plex, how to use it, and what devices support it?

Plex in its latest avatar is a popular entertainment platform that has two major components – a streaming service and a client-server media player.. The client-server media player lets you create a server of all your media files (movies, TV shows, music, and photos) so that you can access them on-the-go via Plex media player apps and web browsers on almost any device. The client-server also organises your media, and even adds useful information like posters, reviews, and subtitles.