Runs in your browser, works best when installed on your Home Screen

Think Droughtfully

Drinking buddy is a web app for logging your drinks and monitoring your estimated Blood Alcohol Content over time.

Drinking Buddy calculates your BAC based on the Widmark Formula, which factors in your body weight, gender, and the time since your drink. It also shows your drinking trends over the last week.

See your current estimated BAC at a glance
Time to zero — know when you’ll be sober
Track your drinks-per-week and set limits for your average drinks/day
The Forecast tells you when you can have a drink and stay within your chosen limits
Log standard drinks simply, or create custom drinks based on quantity and ABV or proof for more accuracy
Share a daily status with friends, export logs as CSV, save and restore complete backups
Your data is secure and local, never sent to a server or shared with anyone

Remember that Drinking Buddy’s BAC display is just an estimate, so please use Drinking Buddy for information and entertainment purposes only. Drink responsibly and don’t drive if you’ve been drinking.

Get Drinking Buddy

Drinking Buddy started life as a Shortcut. Learn more.