Now available for Apple Watch. Live blood alcohol content calculator is so easy to use that you actually want to use it. When you start a drink open the app and choose it. When you finish a drink open the app again and choose the current drink again - thats it! Calculates blood alcohol based on you gender, age, height, weight and time frame. Easy setup: migrate your birthday, height, gender and weight from the Health-App if you like. As seen on "The Today Show". Not sure if this is what you are looking for? Try the lite version first: http://itunes.apple.com/app/id455700427?mt=8 We do not endorse drink driving or the excessive consumption of alcohol. Blood alcohol calculation in this app is based on the Widmark formula and should be used as a guide only. The app should not be used to determine wether a person is able to drive or not.