Duolingo is experiencing a remarkable surge of 216% in user engagement amid the impending US ban on TikTok, which is set to take effect on January 19. As TikTok's popularity wanes, many users are migrating to RedNote, a Chinese social media platform, prompting increased interest in learning Mandarin through Duolingo. This growth is attributed to the so-called 'TikTok refugees' seeking alternative entertainment and cultural experiences. Duolingo cleverly capitalized on this trend through creative social media engagement, positioning itself as the go-to app for language learning in this shifting digital landscape.