SipWiser: Live BAC Tracker

Your night has a shape. SipWiser shows it to you — as it happens.

SipWiser is a live blood-alcohol tracker built around one idea: awareness changes what you drink. You log each sip individually, and the app draws your estimated BAC curve in real time — climbing as you drink, falling as your body catches up. You see the turn of the night coming, instead of finding out tomorrow.

THE LIVE COCKPIT
• A real-time BAC estimate computed with real pharmacokinetics: the Watson formula, per-drink absorption, and steady liver elimination
• Your personal curve, drawn live — see exactly where the night is heading
• Colour-coded bands and a warning as you approach your personal limit
• A projected "back to 0.00" time, counting down on the phone, the lock screen, and your watch

LOGGING THAT TAKES TWO TAPS
• Every drink type — beer, wine, spirits, cocktails and custom recipes
• Regional serving sizes and sensible ABV defaults for every drink type
• Your recent drinks sit one tap away, and any drink can be saved as a quick log
• Optional venue tagging, so you can see where your evenings happen

INSIGHTS THAT LOOK BACKWARDS SO YOU CAN LOOK FORWARD
• Every session saved as a curve you can revisit sip by sip
• Week, month, quarter and year views: totals, patterns, calm and heavy weeks side by side
• Set personal limits and cut-down targets, and track how you're doing
• Take on a dry-streak challenge when you want a proper reset

WEAR OS, ON YOUR WRIST
• Glance at your live BAC and sober countdown without taking out your phone
• Log a drink straight from the watch — even offline; it syncs when reconnected
• A watch tile for the number that matters

PRIVATE BY DESIGN
• Fully offline-first: every calculation runs on your device
• No account required — sign-in and cloud sync are optional
• Your data is yours; export or delete it at any time

BUILT FOR DRINKING LESS, NOT MORE
SipWiser never nudges you to drink. No streaks for drinking, no badges for another round. Its most important moment is the drink you decide not to have — the app simply makes that decision visible, and easier to take.

IMPORTANT
SipWiser provides estimates only. A BAC estimate is never a green light: individual factors mean your true BAC can differ significantly from any calculation. Never drive after drinking, whatever the app shows. SipWiser is not a medical device and does not provide medical advice — if you're concerned about your drinking, consult a healthcare professional.

For adults 18+ (or the legal drinking age where you live).

Free, no ads. iPhone version with lock-screen Live Activity coming soon.

Questions? sipwiser.vercel.app/support
Privacy: sipwiser.vercel.app/legal/privacy