UX Companion is an Android application developed by Cyber-Duck Ltd. It is a free educational app that provides a comprehensive glossary of user experience (UX) theories, tools, and models. The glossary includes free, detailed articles that are written by practicing UX designers and developers from the award-winning digital agency, Cyber-Duck.

The app is designed to help web designers better understand UX terminology, making it an ideal resource for students or anyone who wants to improve their understanding of web design vocabulary. The glossary is easy to navigate, and all definitions are linked to detailed articles that provide a deeper understanding of the concepts. With UX Companion, users can improve their confidence when discussing web design in meetings and other professional settings.