Privacy Policy (Google DART Cookie, GDPR & California CCPA Compliance)
Last Updated: October 2026 • Full AdSense & Programmatic Advertising Disclosure
1. Zero-Server Biometric Privacy (LocalStorage Architecture)
All biometric parameters (weight, height, age, body fat percentage, and daily weight logs) entered into SmartMacroCalc.com are computed locally inside your browser and stored only in your device’s localStorage. We do not transmit or sell your personal health measurements to external servers.
2. Google AdSense & DoubleClick DART Cookie Disclosure
Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website or other websites. Google’s use of advertising cookies (including the DoubleClick DART cookie) enables it and its partners to serve ads to our users based on their visit to our site and/or other sites on the Internet.
Users may opt out of personalized advertising by visiting Google Ads Settings (https://adssettings.google.com) or by visiting www.aboutads.info.
3. California Consumer Privacy Act (CCPA) & GDPR Rights
Residents of California (under CCPA/CPRA) and the European Economic Area / UK (under GDPR) have the right to request disclosure of data collection practices, opt out of the sale or sharing of personal information, and manage cookie consent preferences at any time.