1. A method for optimizing icon arrangement, the method comprising: determining, by a computing device, a cumulative position score of each of a plurality of grids on a display unit based on at least a grid familiarity factor for each of the plurality of grids comprising a frequency of touching each of the plurality of grids during a period of time; determining, by the computing device, a cumulative acquaintance score of an icon on the display unit based on at least an icon familiarity factor for the icon comprising at least one of a frequency of usage of the icon or a number of recorded clicks of the icon during the period of time; deriving, by the computing device, a compatibility score between each of the grids and the icon based on a difference between each of the cumulative position scores and the cumulative acquaintance score; and optimizing, by the computing device, an arrangement of the icon into one of the grids on the display unit having a lowest one of the compatibility scores between each of the grids and the icon.