Crowd management app helps fans stay safe by avoiding overcrowding stocking 0 51 2020.12.01 09:17 https://youtu.be/GuXGqYM49uo + 3 실시간 경기장 대기줄 현황 확인,... 위험 구역 피할 수 있도록 돕는 어플 인기 From paperless tickets to disinfectant sprays,.. sports venues are imposing a variety of ...