Hypertensive disorders of pregnancy (HDP) including pre-eclampsia and eclampsia are a leading cause of maternal morbidity and mortality worldwide, yet can be prevented through early detection of blood pressure (BP) and timely and evidence-based case management. We propose to integrate a cuffless smartphone BP measurement software (OptiBP) within a robust longitudinal health record and decision support system (OpenSRP) for ANC, as a comprehensive approach to drive accurate assessment and timely management of HDP and improve correct action rates.