Duolingo turned practice into a path you can see. The streak, the lesson, and the mistake are all designed so a person returns tomorrow.
Visit DuolingoDesign
One exercise fills the screen. Progress is a path, not a syllabus. The character and the correction stay lighter than the task.
Impact
Language study became a daily object for people who would not have enrolled in a class. The interface is the habit.
How it works
A lesson is a handful of prompts. You answer, you are corrected, you move. The phone is the classroom.
Why it won
Education products in 2025 still looked like courses. Duolingo led by designing the next five minutes.