Marguerite Marlow is the Intervention Lead/co-investigator on ParentApp for the Early Years and Project Manager for the Identifying and Measuring Playful Parenting Using Machine Learning Project. She is also the Technical Research Lead for the Institute of Life Course Health Research and a Senior Researcher in the Department of Global Health at Stellenbosch University, South Africa. Her doctoral research focuses on caregiving practices and child development, based on her work implementing and evaluating an integrated responsive caregiving, nutrition and HIV intervention for caregivers of young children in rural Lesotho.