Level .06

Our aim was to reduce heavy drinking in Sweden, and so reduce the alcohol-related problems that cost billions of dollars, and cause a lot of suffering every year. We learnt that half of all heavy drinkers actually want to drink less. But changing one’s behaviour is hard – almost impossible if you don’t have a clear goal. So we gave people who want to drink more moderately a clear goal: keep your blood alcohol content below 0.06% (the point where the positive effects of alcohol reach their peak). The app warns you when you’ve reached this level by monitoring the number of drinks you log against your personal data.