Nymbl Science’s, Lo Schroeder Reveals How Marketers Can Boost Retention. Falling is a serious problem for senior adults, but one app takes on the challenge. The app pairs simple physical exercise with cognitive brain puzzles to drive a 35% decrease in calls to emergency services for falls and fall-related injuries. It also hyper-personalizes messaging to build trust and reach retention rates that are twice those in any app category. In this episode, part of the Reimagine Growth series sponsored by #CleverTap, I talk with Laura “Lo” Schroeder, Director of Marketing at Nymbl Science, to discuss how trust and empathy directly boost engagement and retention. Nymbl Science , a top-ranked app in the health and fitness category, harnesses hyper-personalization and a novel approach to training to help users improve their lives.