4 In A Line Pro for Android is a two-player (you vs. Android) game in which the players first choose a color and then take turns dropping their colored discs from the top into a seven-column, six-row vertically-suspended grid. The pieces fall straight down, occupying the next available space within the column. The object of the game is to connect four of one's own discs of the same color next to each other vertically, horizontally, or diagonally before one's opponent can do so. It includes option for install and run from SD card (for Android 2.2 and above). User can turn on or off for starting the program with splash screen.