The present invention claims and disclose an improved portable, modular, segmental, universally mountable digit-roll display unit with modular, adjustable, expandable, customizable display, and, or members, which could be universally attached to a plurality of surfaces via a variety of combination of attachments. These functions allow for simple, organized, customizable portable digital signage solutions for the individual. All the individual user has to do is to attach or detach the universally mountable digit-roll display unit according to the display surface dimensions. This makes the apparatus ideal for a peer-to-peer, or a marketer-to-contractor network. In addition, it enables marketer to track geo-location and viewer metrics, in order to dynamically push suitable content to display units and to mobile devices of proximal viewers.