Free on Google Play · Android

The drink tracker and BAC calculator built for adults

Log drinks, monitor your blood alcohol content in real time, and set your own limits. All data stays on your device. No account required.

▶ Get it on Google Play See features ↓
Get Drink Buddy on Google Play
🔒 Private by default — data never leaves your device
⚗️ Widmark formula — scientifically validated BAC calculation
🌙 Dark mode — easy on the eyes at night
🆓 Free to download — ad-supported or paid ad-free
Features

Everything you need. Nothing you don't.

Drink Buddy keeps it simple — log, track, stay in control.

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Track your drinks

Log beers, wines, spirits and cocktails in one tap. Customise your favourites or add your own.

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Real-time BAC calculator

Know exactly where you stand. Uses the Widmark formula — the same method used in medical and legal contexts — calculated from your weight and gender.

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Sobriety timer

See exactly when you'll be back at 0.00 or 0.05. Optional push notifications so you don't have to keep checking.

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Charts & history

Review your drinking history with weekly, monthly and yearly charts. Every drink logged, every timestamp recorded.

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Unit limits

Set your own daily and weekly standard drink limits and get notified when you're approaching them.

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Dark mode

Designed for night use. Dark mode is built-in — no squinting at a white screen at midnight.

Up and running in 30 seconds

No account, no sign-up. Just download and go.

1

Download free

Install Drink Buddy from Google Play. No account required — ever.

2

Set your profile

Enter your weight and gender for accurate BAC calculations. Stays on your device.

3

Log your drinks

Tap a drink to log it. Watch your BAC update in real time as the night progresses.

4

Stay in control

Check your limit, see your sobriety timer, and make informed choices all night long.

FAQ

Common questions

Everything you need to know before you download.

Is Drink Buddy free?

Yes. The free version is ad-supported. A paid version is also available which removes ads entirely.

Does it need an account?

No. Drink Buddy requires zero sign-up. All your data is stored locally on your device — nothing is shared or uploaded.

How accurate is the BAC calculator?

Drink Buddy uses the Widmark formula, which is the scientifically validated method used in medical research and legal blood alcohol estimation. Results are estimates — individual metabolism varies.

Is this app for Android?

Yes, Drink Buddy is currently available on Android via Google Play.

What's the difference between the free and paid versions?

The free version covers everyday tracking — logging drinks, BAC estimates and your recent history. Premium removes all in-app advertisements and unlocks extra features: graphs and analytics, unlimited drink history (free shows the last 30 days), export and import of your drinking data, and custom drinks.

Is this app suitable for minors?

No. Drink Buddy is intended for adults aged 18 and over. It is a drink tracking tool — not a product that promotes alcohol consumption.

Guides & Tools

Know your numbers

Free calculators and guides to help you drink smarter.

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Standard drinks calculator (Australia)

Enter any drink's size and strength to see exactly how many standard drinks it contains — plus a chart of common Aussie drinks.

How long until my BAC is zero?

How fast your body actually clears alcohol, a sober-up time calculator, and the myths (coffee, cold showers) that don't work.

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Tracking drinks during Dry July

How to use drink tracking to make your alcohol-free month stick — baselines, streaks, Golden Tickets and life after July.

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Alcohol and sleep

Why a nightcap helps you fall asleep but wrecks your rest — REM suppression, the 3am rebound, and how to sleep better.

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Legal BAC limit in the US

0.08% everywhere except Utah's 0.05% — the limits for commercial and under-21 drivers, and why you can be arrested below the number.

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How many standard drinks in a cocktail?

Espresso martinis, margaritas and negronis are all around two standard drinks — here's how to count what's really in your glass.

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UK alcohol units explained

One unit is 10ml of pure alcohol, a large wine is 3.3 of them — how to count units, the 14-a-week guideline and UK drink-drive limits.

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How long does a hangover last?

Up to 24 hours, peaking as your BAC hits zero — the science of acetaldehyde, congeners and dehydration, and why no cure actually works.

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Australian alcohol guidelines

No more than 10 standard drinks a week and 4 on any day — where the NHMRC numbers come from, and why most serves count as more than one drink.

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Pacing drinks at a wedding

Nine hours of free-flowing champagne is a trap — the top-up trick, toast etiquette, and a pacing plan that gets you to the last dance.

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Calories in alcohol

Alcohol packs 29 kJ per gram — nearly as much as fat. What beer, wine and spirits really cost in kilojoules, and how to cut back without quitting.

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NZ drink-driving limits

250mcg breath, 50mg blood, zero under 20 — New Zealand's two-tier penalty system explained, from $200 infringements to criminal charges.

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Driving the morning after

Sleep doesn't sober you up — your liver clears about one drink an hour, awake or not. The morning-after maths that keeps you under 0.05.

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Drinking safely at a festival

Heat, 10-hour days and lost count — why festivals hit harder than a night out, with a pacing plan, hydration rules and can-by-can counts.

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Blood alcohol limits in Canada

0.08 is criminal, but most provinces suspend licences from 0.05 — Canada's two-limit system, mandatory screening and zero-tolerance rules.

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Drinking on an empty stomach

Why the same drinks hit harder with no food — how a meal slows absorption and lowers your peak BAC, and the one thing eating can't do.

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Standard drinks in a bottle of wine

A 750ml bottle is about 7–8 standard drinks, not three glasses — the simple formula, a table by ABV, and why home pours add up so fast.

Ready to drink smarter?

Download Drink Buddy free on Google Play. No account. No fuss.

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