While Duolingo offers an easy and fun way to learn, opening the app can still feel like sitting down to study. “Lock in with Duo” turns procrastination into an opportunity to learn. The feature acts as an app blocker, with Duo appearing every few minutes while the user scrolls. To continue, they have to complete a short exercise, making them earn every scroll. Instead of asking people to put their phones down, Duo turns wasted screen time into a chance to learn.

To keep users engaged, “Lock in with Duo” also introduces a leaderboard, with the top learner winning a free scholarship. Combining behavioural design, gamification, and Duolingo’s playful personality, the campaign turns procrastination into progress while keeping learning as accessible and engaging as scrolling.