Visualize your estimated blood alcohol content over time with this educational tracker. Log drinks, see your BAC curve rise and fall in real-time, and review your session history. Personalized by your profile data and supported by scientific formulas.
1.2
July 2, 2026
Apple Health drink write sync
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SipLogger provides an estimated BAC with approximately 20% accuracy. This estimation can vary based on factors like food intake, hydration, medications, and individual metabolism.
No, SipLogger is ad-free. You can use all its features without any advertisements interrupting your experience.
SipLogger utilizes the Watson Total Body Water method combined with the Widmark formula for its BAC estimations. These scientifically-grounded methods are personalized by your weight, height, sex, and age.
Yes, SipLogger can optionally read your weight, height, biological sex, and age from Apple Health. This data is used for read-only purposes to personalize your BAC estimates and is never transmitted or written back to Health.
SipLogger is currently supported on iPhone devices. It offers features like Live Activities for the Lock Screen and Dynamic Island.
The latest version of SipLogger is 1.2, and it was last updated on July 2, 2026. Updates typically bring new features, improvements, and bug fixes.
No, SipLogger is strictly an educational and informational tool. Its estimated BAC values have approximately 20% accuracy and should never be used to make decisions about driving or operating machinery.
SipLogger is available in 8 languages, including English, Ukrainian, Polish, French, Spanish, German, Czech, and Italian, with full localization for each.
