BAC Calculator & Drink Tracker

About BAC Calculator & Drink Tracker

Know your limit. Get home safe.

Alcophone is a science-based Blood Alcohol Content (BAC) calculator and drink tracker calibrated for your body and your country. Most BAC apps still rely on the Widmark formula from 1932: nearly 100 years old, with the same math for everyone. Alcophone uses two modern, peer-reviewed models that account for how alcohol actually distributes in your body — and the right legal limits wherever you are.

The result? Other apps can underestimate your BAC by up to 25%. Alcophone is built to get it right.

━━━━━━━━━━━━━━━━━━━━

WHY ALCOPHONE IS DIFFERENT

▸ Built for Your Country — Not Just One
USA, Canada, Australia, UK & India. Legal BAC limits for every state, province and territory. Local drinks, country-specific guidelines, and the right science for where you drink. Fully localized in English, Spanish, French and Hindi (हिंदी).

▸ The Right Science for Your Body
Norberg/Deurenberg (2003) for Western populations, plus a dedicated South Asian model calibrated for Indian body composition — instead of one generic formula that treats everyone the same.

▸ One-Tap Safe Ride Home
When your BAC is above zero, your rideshare buttons appear automatically — Uber, Lyft and Ola, matched to your country. No fumbling through apps after a few drinks. Your safe ride is one tap away.

▸ 5,800+ Real Drinks
Real brands with accurate ABV and serving sizes — beers, wines, spirits, cocktails, seltzers and ciders, including local favorites from every supported country. Most apps have 50–200 generic drinks. We have thousands.

▸ Your Data Stays on Your Phone
No account. No server. No tracking. Everything is stored locally and works 100% offline. Your drinking data is nobody's business but yours.

━━━━━━━━━━━━━━━━━━━━

FEATURES

◆ Real-Time BAC Gauge
Live-updating gauge with color-coded risk levels — from Safe to Severe. See exactly where you stand at a glance.

◆ See the Impact Before You Drink
Preview your predicted BAC before logging a drink — with a warning before it pushes you over the limit.

◆ Time to Sober
Know the exact time you'll be sober again — back to 0.00% BAC. Plan your night, plan your ride.

◆ State & Country Legal Limits
Your local limit is shown right on the gauge — including a zero-tolerance mode for provisional and learner drivers, and alerts for regions where alcohol is restricted.

◆ Emergency Call Button
At dangerous BAC levels, tap to call emergency services instantly — 911 / 000 / 999 / 112, depending on your country.

◆ Food & Water Tracking
Meals lower your BAC peak — Alcophone factors it in. Log water too, and see your hydration score and water-to-alcohol ratio.

◆ Trends & Insights
Standard drinks, calories, alcohol grams, weekly comparisons and food equivalents. Understand your drinking habits with data, not guesswork — a real alcohol tracker, not a guess.

◆ Calendar Heatmap
A color-coded view of your drinking history. Tap any day for a full breakdown — drinks, BAC peak, calories and more.

◆ 152 Achievements
Earn badges across 14 categories and level up for responsible-drinking milestones.

◆ Drink Tracker & Alcohol Diary + CSV Export
Track every drink — a full history of your alcohol intake. Export your data anytime — it's yours.

◆ Drunk-Friendly Controls
Shake to add a drink, flip your phone for a ride. Optional smart notifications keep you aware.

━━━━━━━━━━━━━━━━━━━━

PREMIUM — PAY ONCE, OWN FOREVER

Upgrade once for enhanced accuracy using the Navy body-composition method — a personalized calculation for a tighter BAC estimate. One-time purchase. No subscription, no monthly fees, ever.

━━━━━━━━━━━━━━━━━━━━

IMPORTANT DISCLAIMER

Alcophone provides estimates only. It is NOT a breathalyzer and cannot measure your actual BAC. Never drive after drinking, regardless of what any app says — the only way to avoid a DUI is not to drive. If you've had any alcohol, get a safe ride home.

You must be of legal drinking age in your country to use this app.