Use this app when attending a Gift of Life donor drive to securely enroll as a potential bone marrow donor. Using your phone’s location the app will find you at the drive and guide you through the 4-step process of registering as a donor. Join the registry and help save a life! Gift of Life Marrow Registry is a leading international bone marrow and blood stem cell registry that has over a quarter of a million diverse registered donors and growing. We pride ourselves on our mission: A match.