Duolingo is an active, highly popular educational technology platform and language-learning application that is not dead, having been originally launched in November 2011 by Luis von Ahn and Severin Hacker. Over its operational history spanning more than a decade, the platform has grown exponentially, boasting hundreds of millions of active users worldwide who rely on its gamified lessons to study dozens of different languages, mathematics, and music. Far from being defunct, the company went public with a successful initial public offering on the NASDAQ exchange in 2021 and continues to aggressively innovate by integrating advanced generative artificial intelligence features, customized learning pathways, and expanded course offerings into its digital ecosystem.