App Listings

ABCD card OS


What is the ABCD Cards app?

The ABCD Cards app can be used in an educational setting as a polling tool and alternate to conventional paper ABCD cards. The simple interface allows for answers to be communicated visually to the instructor quickly and easily. For more interactive ideas for teaching, see the WWU Teaching Handbook.


The ABCD Cards app was created by the Center for Instructional Innovation & Assessment at Western Washington University.

Project Lead: Justina Brown
Developer: Nickelos Hill
Video: Sarah Edmonds


The ABCD Cards app is free to use via GooglePlay or the App Store under a CC-BY-ND Creative Commons license. All content within was created using the Apple's Xcode IDE (iOS version) and Google's Android Studio IDE (Android version), which is based on JetBrains's IntelliJ IDEA.

Bugs / Feedback / Contact

If you've encountered any bugs or other issues, please email Be sure to include the platform (Android or iOS), a description of the issue, and any other relevant information (device model, iOS/Android version, etc).

If you have any feedback, or would like to contact the CIIA, please email