Blood Tracking and Donor Management System (BTDMS) is a cross-platform mobile application designed to streamline the recording of blood administration for specific patients and to facilitate timely reporting of any adverse reactions during blood transfusions to a centralized system. The primary purpose of this app is to maintain accurate logs of blood transfusion events and ensure that any reactions are promptly communicated to the central authority. The app is intended for use exclusively by registered hospital personnel affiliated with authorized healthcare institutions and possessing a valid NMC or NNC registration number.