The now familiar refrain "There's an app for that!" captures the resurgence of interest in apps thanks to the growing popularity of smartphones and tablets. But apps — lightweight networked programs with one or two dedicated functions — have been around for a long time and are now being developed for not only smartphones and tablets but also browsers, TVs, gaming devices, home appliances, and even automobiles. We've aggregated a list of common questions every customer experience professional should know how to answer including: "Do we need an app for every digital platform?" and "How do we design an app that delivers the right customer experience?"