Abstract: A mobile software application by which a user may stream, from a unique host user profile associated with the user, an online session being associated with one or more items available for sale from the user (e.g., available for auction). One or more graphical user interfaces of the application enable mobile devices of external users to access the host user's online session by displaying a real-time video stream in conjunction with one or more images/videos associated with the available product(s). These external users may use the GUI(s) to participate in the auction of the product(s), e.g., by placing bids, within the host user's online session. The host user may utilize one or more fully integrated services and features that enable the host user to more efficiently and easily conduct the online session.