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On February 11, 2025, Duolingo announced, as part of a publicity stunt, that Duo had died,[151][152][153] also stating the characters birth date as 1000BC, and his full name as Duo Keyshauna Renee Lingo.[149][150] Duo served as the motivational face of the app, encouraging users to complete their lessons and maintain their learning streaks. Duo has become a well-known internet character, often depicted humorously as gently (or aggressively!) reminding users not to miss their streaks. Over time, Duo has gained a bit of a reputation in memes for being persistent—even threatening—about keeping users on track with their lessons. According to Duolingo Brand Guidelines, "Duo is a boy" and communicates through text only.
