GlobInv, which stands for Global Innovation in Optical & Photonic Manufacturing, is an advanced calculator app tailored for industry professionals and technicians who work with fiber optic systems. By combining intuitive data entry with specialized contamination risk analysis, GlobInv enables users to select the connector type, identify present contaminants, and input precise fiber specifications to instantly estimate optical loss, risk category, and recommended maintenance actions. Designed to support rapid decision-making in laboratories, manufacturing plants, and on-site fieldwork, GlobInv empowers users to safeguard network performance, optimize connector reliability, and implement effective cleaning or replacement strategies, all within a streamlined and visually engaging interface.