A free app for Android, by pitimese.
SoberApp is the world's best-selling breathalyzer app, which helps you keep track of your alcohol consumption.
With this handy tool, you can measure how much alcohol you've consumed, how much you've had in the last hour and how many units you've had. All this information will be displayed graphically, so you can track your drinking history over time.
SoberApp also provides you with a comprehensive overview of your alcohol consumption for the last 24 hours, 7 days and even the previous 30 days. The app calculates how much alcohol you've had in the last 24 hours and how much you've had in the previous 7 days.
You can set your country and drink preference to find the information you're looking for.