This app is to help provide quick results for your 7th edition Call of Cthulhu games or allow you to run a game when you dont have any dice.
You only need to provide the stat or skill value and tap "Roll the Dice" to see if you have a success or failure. If you succeed, then the level of success is shown. Sliders are added to allow for the use of a bonus or penalty die (for 7th edition or earlier if house-ruled).
You can also just roll the dice without entering a state or skill value and the result will be shown along with what stat or skill is needed to achieve the different success levels.
Suggestions for further features is welcome.
Call of Cthulhu is a registered trademark of Chaosium Inc. and is used with permission.