From the publisher's website:

With the WFRP Toolkit on your iPhone, iPod Touch, or iPad, you can have the convenience of a full set of WFRP dice at your fingertips. Its intuitive design ensures a seamless fit into your WFRP sessions; simply tap the dice you need, then shake your device to roll them!

If you’re looking for a deeper analysis of your rolls, the WFRP Toolkit delivers. Your results can be saved for future reference, letting you revisit your most spectacular success and failures as you recall your perilous adventures later on. Have you ever felt like the dice hate you, and you can’t catch a break? Now you’ll have the facts to back up your claims; the WFRP Toolkit can compile extensive reports of your dice rolls, offering detailed statistical analyses.