The Child Electronic Registration and Vaccination (CERV) is a mobile application aimed at streamlining child vaccination processes. Its notable features include integration with the EPI Management Information System (EPI MIS) for automated monthly reporting, a biometric fingerprint scanner, and a QR code reader for child identification. The app enhances vaccination management by enabling the saving of vaccination images, identification of defaulter children, and sending SMS reminders. It can generate both daily and permanent registers, along with comprehensive monthly reports. Furthermore, CERV provides online immunization cards with printing capabilities and supports vaccinations for children outside their usual charge or district, focusing on vaccination and immunization health areas.