drinkYs
Track your drinks. Know your BAC. Stay in control.
Track your drinks. Know your BAC. Stay in control.
drinkYs calculates your BAC using the Widmark formula with a minute-by-minute simulation that accounts for absorption, elimination, and your body profile — not a rough estimate.
Tap to log your default drink instantly. Long-press to pick from your custom drink types.
See your blood alcohol rise and fall on live charts — 2-hour window and full 24-hour view.
Know exactly when you'll be below your chosen threshold, even accounting for drinks still absorbing.
Enter your weight, sex, and drinking experience. Your elimination rate is calculated automatically.
Browse every drink grouped by day. Edit timestamps, change drink types, or export to CSV.
Monthly calendar view shows your patterns in Drinks, Units, or BAC mode at a glance.
Opt-in toggle in Preferences automatically writes every drink to Apple Health as standard drinks. Choose EU (10 g) or US (14 g) standard drink definition. Write-only — drinkYs never reads your Health data.
Not every drink is a full one. When editing a history entry you can now enter a quantity like 0.5 or 1.5 — the alcohol content and BAC calculation update accordingly.
Calculations use the Widmark formula and peer-reviewed pharmacokinetic research. Every person is different — always use common sense and consult your doctor for health advice.
No account required. No cloud sync. No analytics. Everything is stored locally on your iPhone using on-device storage only.
Customise all drink slots with your own volumes, ABV, and icons.
Set your weight and sex for accurate, personalised BAC calculations.
Export a styled stats card with your daily summary and BAC chart.
Adjust sobriety threshold, daily limits, and all app settings.
drinkYs uses the Widmark formula with a minute-by-minute simulation. It factors in your weight, sex, and experience to compute a personalised elimination rate. Read the full methodology →
It provides science-based estimates using peer-reviewed pharmacokinetic models. Every body is different — food, fatigue, and medication all play a role. The estimates are a useful guide, not a medical measurement. Never rely on them to decide whether to drive.
drinkYs is free to download. Premium (one-time purchase) unlocks body profile customisation, all drink type slots, and stats sharing.
No. Everything stays on your device. No account, no cloud, no analytics. Read the Privacy Policy →
Promille (‰) is the standard BAC unit in Europe. 0.5‰ = 0.05% BAC — the EU legal driving limit. drinkYs displays BAC in promille.
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