ShinyProxy

https://www.shinyproxy.io/
https://appsilon.com/alternatives-to-scaling-shiny/

(1) Shiny Server Open Source

(2) Shiny Server Pro

(3) ShinyProxy

ShinyProxy from OpenAnalytics is an open source alternative for serving Shiny apps. It provides many features required by enterprise applications. Its architecture is based on docker containers, which isolate the app’s environment and can serve not only Shiny apps but other apps, too (like Dash).

The key difference is that ShinyProxy starts a new app instance for each new user. The architecture is straightforward, convenient, and easy to maintain.

(4) Custom architecture like Appsilon Revolver