drinkYs - BAC & Drink Tracker
Blood Alcohol Calculator
Only for iPhone
Free · In‑App Purchases
iPhone
Know your BAC minute by minute. drinkYs uses the Widmark formula to show your blood alcohol live, personalised to you. Now with Apple Health sync.
drinkYs calculates your blood alcohol content with a minute-by-minute simulation, not a rough estimate.
Track drinks, see your BAC curve live, and know exactly when you'll be sober.
Built on peer-reviewed pharmacokinetic research. Your data never leaves your device.
ONE-TAP LOGGING WITH PARTIAL DRINKS
Tap to log your default drink instantly. Long-press to pick from your custom drink types. Log partial drinks too — half a pint, a small measure, or any fractional amount — for precise, accurate tracking.
LIVE BAC CURVES
Watch your blood alcohol rise and fall on real-time charts — 2-hour window and full 24-hour view. The simulation accounts for absorption, elimination, and your body profile.
SOBER-BY ESTIMATE
See exactly when you'll drop below your chosen threshold — even accounting for drinks still being absorbed.
PERSONALISED TO YOU
Enter your weight, sex, and drinking experience. Your elimination rate is calculated automatically using the
Widmark formula.
APPLE HEALTH INTEGRATION
drinkYs writes your blood alcohol estimates to the Apple Health app so you can track them alongside your other health data. Requires permission — your data stays on your device and is never shared with us or any third party.
FULL HISTORY & HEATMAPS
Browse every drink grouped by day. Edit timestamps, change drink types, or export to CSV. Monthly calendar heatmap shows your patterns in Drinks, Units, or BAC mode.
PREMIUM — ONE-TIME PURCHASE
Unlock body profile customisation, all drink type slots with custom volumes and ABV, stats sharing, and full app preferences. Pay once — no subscription.
SCIENCE-BASED, PRIVATELY STORED
Calculations use the Widmark formula and peer-reviewed research. No account, no cloud, no analytics. Everything stays on your iPhone.
drinkYs provides estimates for informational purposes only. BAC estimates are not a substitute for certified testing. Never use this app to determine whether you are safe to drive. Always choose a safe way home.
Ratings & Reviews
-smoother and faster user experience
-bug fixes
The developer, Wessel de Haas, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Wessel de Haas
- Size
- 21.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- Frequent
Alcohol, Tobacco, Drug Use or References
- In-App Purchases
Yes
- DrinkYs $5.99
- Copyright
- © 2026 Wessel de Haas