This article describes the development of a prototype application for obstetric telemonitoring of hypertensive syndromes during pregnancy. A workflow was elaborated with the conduct for gestational hypertensive syndromes. Subsequently, prototyping was performed using Balsamiq. The prototype presents daily monitoring of blood pressure, signs and symptoms, displays accompanying charts, and generates alerts when there are changes to more or less the normal values, which are sent to the pregnant woman and the health professional.