Wonderful App and Developer! Though certainly not for everyone, this app is really helpful for figuring out experience points for up to 10 players for the Middle-Earth Role Playing game (aka MERP). It's certainly helpful to read the instructions before using this, as figuring out how to input criticals can be a little confusing; but once you know how to do that, it's a breeze. The best part is the developer: I found an error with the app so I emailed him about it, and by the next day it was corrected! Great service!