Fantastic dice roller app

This app is fantastic. I tried a bunch of dice roller apps recently to find the one I want to keep on my phone, and this one won hands down.
You can quickly do common dice rolls (like 1d20 or 3d6), or make customized buttons for rolls used in whatever commonly used abilities your characters have (like 3d8+1d4+17). You can even see a graph of the range of results that a particular dice combo can have. And its free.

radfordblue about RPG Roller