"You can build just about any app you can imagine with App
Inventor. Often people begin by building games like WhackAMole or
games that let you draw funny pictures on your friend's faces. You
can even make use of the phone's sensors to move a ball through a
maze based on tilting the phone.
"But app building is not limited to simple games. You can also
build apps that inform and educate. You can create a quiz app to
help you and your classmates study for a test. With Android's
text-to-speech capabilities, you can even have the phone ask the
"To use App Inventor, you do not need to be a developer. App
Inventor requires NO programming knowledge. This is because instead
of writing code, you visually design the way the app looks and use
blocks to specify the app's behavior."