Abstract BACKGROUND: At present, dengue fever is a threat to society and causes rapid death. Aedes aegypti mosquito bites can transmit disease to the public. Environmental factors n society are the primary role that can transmit Dengue hemorrhagic fever (DHF).AIM: Creating a survey system using a smartphone for early alertness to larva monitoring in the Darul Imarah subdistrict, Aceh Besar di…