Plex (software) The Plex Media Server desktop application runs on Windows, macOS and Linux -compatibles including some types of NAS devices. The server desktop application organizes video, audio and photos from a user's collections and from online services, enabling the players to access and stream the contents.What are Plex apps?
Plex is a streaming media server with support for every major operating system, smartphone, and streaming device on the market. It lets users download their favorite shows, music and movies, then stream them to any device with a Plex app.What is a Plex program?
Plex is a sophisticated media management program that takes your entire collection of movies, music, and still images and presents it in a slick and navigable package.