BACGraph is designed to help you estimate Your Blood Alcohol concentration. Many people who do drink and do drive, and sometimes drive after drinking, want a way of making sure they are not breaking the law. Those who are not allowed to drive with any alcohol in the blood want to know how long it will be before BAC is back to zero. Usually, when You need to know the approximate time for sobering, Your desktop PC is not accessible. BACGraph & PocketPC is a good choice for these kinds of situations.