One Heart Health developed the One Heart App as a congenital heart disease (CHD) screening solution to reach the 90% of children in the world who do not have access to quality cardiac care. The One Heart App enables non-specialized healthcare workers to reach remote and underserved populations and provide CHD screening using a digital stethoscope and a mobile device. The One Heart App allows users to create an account, add patients, record heart sounds, assign patients to an expert user, complete consultation of assigned patients, and review consultation results. There are three primary users for the One Heart App including general users, nurses, and pediatric cardiologists (expert users).