GRAPHICAL USER INTERFACE WITH DYNAMICALLY CHANGING PROXIMITY-BASED TILES

A graphical user interface (GUI) has dynamically changing user-selectable graphical tiles that automatically reorder in closest-to-farthest order based on a real-time location of an electronic computing device having a location tracking device. Physical entities near the device are displayed on the GUI. As the location of the device changes, the list dynamically changes in real time by reordering display of the tiles on the GUI so that a closest of the physical entities is displayed topmost. A points balance associated with a user of the electronic computing device is displayed. A window is displayed in response to triggering events. The user can select one of the tiles, or the device can come within a minimum threshold distance. In response to a selection or user input, an exchange value is received from an external computer server corresponding to a number of points. An electronic transaction is facilitated using the exchanged points.