[unable to retrieve full-text content] Why Duolingo turns streaks into addictive habits while Amazon’s badges gather dust The habit loop uses rewards to drive engagement and retention, helping users stay consistent and achieve their goals. Drumroll, please! I recently sold an item on Vinted for the first time — finally, a win! To be honest, I originally downloaded the… Continue reading How Duolingo, Nike, and Amazon use rewards to keep you hooked