Visual impairment and blindness is a serious global concern. Poor awareness and late detection are significant factors contributing to the vast number of visually impaired people worldwide. The ubiquitous use of smartphone devices enables the general public to access various services provided easily. Our Vis-Screen mobile application is developed based on the necessity for early detection of any vision problem to avoid further vision loss. Simple built-in algorithm and user-friendly features of this application suits any laypersons to do vision testing among themselves with only minimal training needed, therefore promoting the importance of healthy vision within the community.