Sample apps are examples of working code that you can browse, run,
and learn from to get started developing your own Google Cast app.
Codelabs provide a guided, hands-on coding experience
with step-by-step instructions that take
you through the process of either building an app that uses certain features of
the Cast API or enabling an existing app to use the Cast API.
The reference apps listed here are those that comply with the
Google Cast Design Checklist
and follow Google Cast development best practices. Use these apps
as a starting point when developing your app for Google Cast.