Chungnam Student Guardian is a disaster / safety app for the Chungnam Provincial Office of Education. It is a disaster / safety app for various disasters / safety situations. / Implemented to enable quick and effective response. Location-based services allow location information to be sent to registered contacts in case of a hazard, quickly informing of a dangerous situation, and behavior tips for each type of disaster. In addition, real-time information on various disaster / safety situations (announcements, school closures, etc.) are provided to improve accessibility and usability