I worked with UX researchers to pull together feedback from app store reviews, surveys, and interviews, identifying the key themes that would shape the solution. I looked at bookmarking patterns across other apps — terminology, placement, and interaction feedback — then explored different approaches to what could be saved, where to store it, and how the interactions should feel. Three concepts were tested, focusing on location, terminology, and functionality. The feature launched successfully — resulting in a 16% increase in workout starts and a 54% increase in app engagement.