Touch the kitty to make it meow! This is the "Hello World" of App Inventor, the first app most people build. You'll learn that app building is about specifying responses to events, in this case playing a "meow" sound in response to a button click.
Check out the app and what you'll learn.
Upload the kitty image and meow sound file, then build the user interface with a Canvas and Sound component.
Drag out a Canvas.Dragged event and then plug in a Sound.Play call
Use the App Inventor companion to install the app on your phone
An app is a set of event-handlers