Privacy Policy
Last updated: October 15, 2026
SipLogger ("we", "our", or "the app") is committed to protecting your privacy. This Privacy Policy explains how your information is handled when you use our free educational BAC calculator and drink tracker mobile application.
Information We Collect
SipLogger is designed with privacy as a core principle. We do not require account registration or login. The app collects no data whatsoever.
Data stored locally on your device:
- Drink session logs and history
- Profile information (weight, height, sex, age) for estimated BAC calculations
- App settings (language, measurement units, preferences)
This data never leaves your device. There are no servers, no cloud sync, and no data transmission.
Apple HealthKit
SipLogger may optionally access Apple HealthKit to read the following data for more accurate educational estimated BAC calculations:
- Weight — used in the Widmark formula
- Height — used in the Watson TBW calculation
- Biological Sex — used for gender-specific distribution factors
- Date of Birth — used for age-related metabolic adjustments
Important HealthKit disclosures:
- HealthKit access is entirely optional — the app works without it
- SipLogger writes to HealthKit only if you turn on “Save Drinks to Apple Health” in Settings (off by default). It then saves each drink you log as Number of Alcoholic Beverages, in standard drinks, and removes it from Health if you delete the drink in SipLogger. It writes nothing else.
- HealthKit data is used only for local calculations on your device
- HealthKit data is never transmitted to any server or third party
- HealthKit data is never stored outside of Apple's HealthKit framework
- HealthKit data is never used for advertising or marketing
Third-Party Services in the App
SipLogger contains no third-party SDKs, analytics, tracking, or advertising within the mobile app. There are no network calls made by the app. All calculations are performed locally on your device.
Website Analytics
This website (siplogger.app) uses Google Analytics 4 through Google Consent Mode. Website analytics are entirely separate from the mobile app, which contains no analytics at all.
Whether Google Analytics runs before you make a choice depends on where you are. For visitors in the European Economic Area, the United Kingdom, and Switzerland, Google Analytics is not loaded until you select “Accept” in the analytics banner. Elsewhere, Google Analytics runs from your first page view and the banner lets you turn it off. Either way your choice is stored in your browser and applies to later visits, and analytics stays disabled in every region if your browser sends a Do Not Track signal. We determine the region from your device’s time zone and language settings, treating unclear cases as European, and Google’s Consent Mode additionally applies the European default based on your network location.
When analytics runs, Google Analytics may process the page viewed, the referring page, a timestamp, browser and device characteristics, an approximate location derived from the network request, and clicks on App Store download links. We do not send Google Analytics your name, email address, or anything from the app. You can change your choice at any time through “Cookie Settings” in the footer; turning analytics off after it was running disables future analytics events immediately and reloads the page without the Google Analytics script.
Separately, this website may count page views with Cloudflare Web Analytics, which uses no cookies, stores nothing on your device, and reports only aggregate totals. It is not loaded if your browser sends a Do Not Track signal.
Data We Do Not Collect
We want to be clear about what we do NOT collect:
- We do not collect personal identification information
- We do not require account creation or login
- We do not have backend servers
- We do not collect analytics or usage data within the app
- We do not share, sell, or transfer your data to any third party
- We do not use tracking technologies within the app
- We do not transmit HealthKit data anywhere
Data Security
Your data is stored locally on your device using iOS standard secure storage mechanisms. All data remains under your control and is protected by your device's security features (passcode, Face ID, Touch ID).
Data Retention
All data is stored locally on your device. You can delete your data at any time by:
- Deleting individual sessions or drinks within the app
- Clearing all app data through iOS Settings
- Uninstalling the app
Age Requirement
SipLogger is rated 18+ on the App Store and is intended for adults of legal drinking age. The app is an educational and informational tool — it does not encourage or promote alcohol consumption. We do not knowingly make the app available to anyone under the legal drinking age in their jurisdiction.
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.
Contact Us
If you have any questions about this Privacy Policy, please contact us at: