The Arkham Horror Toolkit includes:
Investigator Tool - tracks your investigator stats
Dice Roller - Rolls up to 15 dice; clearly displays successes; can be adjusted for blessed or cursed; allows you to spend clue tokens (the clue token you have are tracked by the toolkit)
Location Deck - Choose an Arkham or Other Worlds location and the tool will display a random card. You can choose to included or exclude expansions. (Expansions must be downloaded separately)
Map - Use as a quick reference, or zoom and tap a location to draw a location card.
Compatible with: iPhone, iPod, and iPad
More Information can be found at: The Arkham Horror Toolkit Website and the iTunes App Store