This app is to be used in an educational setting as a polling tool and an alternative to conventional paper cards. The simple interface allows for answers to be relayed to the instructor quickly and easily.
Clicking on a letter/color blows it up to the full size of the screen - clicking the arrow in the corner brings you back to the main screen. ABCD Cards is extremely easy to use and also lightweight on memory and storage (1MB in size).
ABCD Cards was created by the Center for Instructional Innovation & Assessment at Western Washington University.