Exporting 'shiny' applications with 'shinylive' allows you to run them entirely in a web browser, without the need for a separate R server. The traditional way of deploying 'shiny' applications involves in a separate server and client: the server runs R and 'shiny', and clients connect via the web browser. When an application is deployed with 'shinylive', R and 'shiny' run in the web browser (via 'webR'): the browser is effectively both the client and server for the application. This allows for your 'shiny' application exported by 'shinylive' to be hosted by a static web server.

Assesses the number of concurrent users 'shiny'
  applications are capable of supporting, and for directing application changes
  in order to support a higher number of users. Provides facilities for recording
  'shiny' application sessions, playing recorded sessions against a target
  server at load, and analyzing the resulting metrics.

Track and record the use of applications and the user's interactions with 'Shiny' inputs.
  Allows to trace the inputs with which the user interacts, the outputs generated, 
  as well as the errors displayed in the interface.

Provides functions that wrap HTML Bootstrap
    components code to enable the design and layout of informative landing home
    pages for Shiny applications. This can lead to a better user experience for
    the users and writing less HTML for the developer.

Simple and secure authentification mechanism for single 'Shiny' applications.
    Credentials are stored in an encrypted 'SQLite' database. Source code of main application
    is protected until authentication is successful.

Allows shiny developers to incorporate UI elements based on Google's Material design. See <https://material.io/guidelines/> for more information.

A 'Shiny' app allowing to compare and merge two files, with syntax highlighting for several coding languages.

Provides tools for capturing logic in a Shiny app and exposing it as code that can be run outside of Shiny (e.g., from an R console). It also provides tools for bundling both the code and results to the end user.