Described herein are techniques and systems that allow modification of functionalities based on distances between a shared device (e.g., a shared display, etc.) and an individual device (e.g., a mobile computing device, etc.). The shared device and the individual device may establish a communication to enable exchange of data. In some embodiments, the shared device or the individual device may measure a distance between the shared device and the individual device. Based on the distance, the individual device may operate in a different mode. In some instances, the shared device may then instruct the individual device to modify a functionality corresponding to the mode.