Here are the basics for using Gamer’s Dice to get you up and running:
The button that the top of the screen is the Results button. Tap it to roll the dice. It changes to show the result of the roll. The three buttons below that show what is being rolled. They use standard gaming notation where the first button is the number of dice being rolled (Multiplier Button), the second button shows how many sides the dice have (Die Button) and the third button shows what to add or subtract from the roll (Modifier Button). When you tap any of these buttons a dialog will pop up where you can choose a new value.