'2d Data Plotter' is a simple graph plotting android app which can be used to plot graphs of your experimental or theoretical 2-dimensional X-Y data very easily using your mobile phone or tablet. You may learn how to calculate smallest scale divisions for a graph grid. You may get guidance on how to mark a data point on a graph grid. You may perform additional tasks like evaluating a function of known values obtained from experiment. You may do all this and more using a simple and very friendly