Roadmap 2.0 is a mobile application for delivering a positive psychological intervention program for caregivers and patients undergoing a blood and bone marrow transplant (also referred to as hematopoietic cell transplant). Eight engaging activities aim to enhance positive thoughts and emotions and promote building character strengths, social connections, and purpose in life to help caregivers in their journey to not just survive the challenging and stressful experience, but rather to thrive des