Sobr — Alcohol & BAC Tracker
· v1.3
About
Sobr is a blood alcohol (BAC) tracker that lives on your wrist. Log a drink in one tap and Sobr shows your estimated BAC in real time, when it will drop back under your own personal threshold, and when you'll be fully sober — all computed with a real pharmacokinetic model, not just a drink counter.
HOW IT WORKS
Sobr models how alcohol actually moves through your body: absorption after each drink and a constant elimination rate, personalised with your weight, height and sex (Widmark method). The result is a live curve that rises while you drink and falls as your body clears the alcohol — including drinks that haven't fully hit you yet.
LOG A DRINK IN ONE TAP
• Ready-made presets: beer, wine, spirits, cocktails, champagne and more
• Your recent drinks automatically sort to the top
• Build your own shortcuts right on the watch (name, volume, strength)
• Custom entry for anything else: just type ml and %
KNOW YOUR EVENING
• Status gauge with your live BAC in ‰ and colour-coded zones
• "Sober at …" — the answer you actually want, right on the main screen
• Full graph: your evening so far plus the projected hours ahead, with your personal threshold and the exact moment you drop back under it
• Glance widget: check your level without even opening the app
IT COMES TO YOU
• Automatic alert: your watch buzzes the moment your estimated BAC drops back under your own threshold — even with the app closed
• Morning recap: open Sobr the day after and get the full story — how many drinks, your peak BAC, and when you were sober again
YOUR THRESHOLD, YOUR RULES
The threshold is fully configurable and entirely personal. Set it to whatever matters to you — a cut-off for logging another round, a level below which you allow yourself tomorrow's workout, or simply zero. Sobr never tells you what a level means; it just tells you when you're under it.
TRACK YOUR HABITS
• Today's log with time, size and strength of every drink (delete mistakes in seconds)
• Set your own daily drink limit and see it as a colour-coded bar
• 7-day and 30-day charts against your daily limit, and your whole year month by month
YOURS, PRIVATELY
• Works fully offline — no account, no phone app, no data leaves your watch
• Available in English, Dutch, German, French and Spanish
IMPORTANT
Sobr provides estimates only. Actual BAC varies from person to person and drink to drink. No amount of alcohol is safe for driving. Never use this app to decide whether you can drive or operate machinery — if you've been drinking, don't drive. Not a medical device.