The icons on the phone screen are arranged in a grid (My Cubot Note S is a 5 x 5 grid for example). Some phones, LG or Samsung I think, allow the user to change the grid size. A friend who really likes his iPhone would like to make a smaller grid so that he can see the icons better without glasses. I wondered if there is a method / way / library which can do this in Android and/or iOS? It would be necessary to change the grid size and the size of the icons. Any ideas?