I tried a couple of the free apps and all had some critical flaw. This keeps track of everything I wanted and previous entries are able to be revised - something I couldnt find on other apps. Very easy to enter and adjust specs of a drink on the spot. Interface is fantastic, save for maybe the all purple design which cant be changed, but that certainly doesnt deduct any full stars.
piferrell about IntelliDrink PRO - Blood Alcohol Content (BAC) Calculator, v2.2