Privacy Policy
Last Updated: December 2025
Your privacy matters to us. We built ETG Calculator with a "privacy-first" approach because we understand that users searching for ETG detection information often have legitimate privacy concerns.
The Short Version
- Your calculations stay on your device. All calculations happen in your browser—nothing is sent to our servers.
- We don't store your inputs. Your drinking amount, timing, and other inputs are never saved anywhere.
- No account required. You don't need to sign up or provide personal information.
- Third-party analytics. We use standard analytics tools (Google Analytics, Clarity) to understand site usage. These services may use cookies.
How Our Calculator Works (Privacy-Wise)
When you use ETG Calculator:
- You enter your information (drinks, timing, etc.)
- All math happens right in your browser
- Results display on your screen
- When you close the page, your data is gone
Your calculation inputs (drinks, timing, weight) are processed entirely in your browser and are not transmitted to our servers. We have no way to access or store this data.
What We Collect
Analytics
We use third-party analytics tools to understand how people use our site:
- Google Analytics: Page views, general location (country-level), device type, browser
- Microsoft Clarity: Session recordings and heatmaps to improve usability
These services may use cookies and collect pseudonymous data (such as device identifiers) as described in their respective privacy policies. They help us improve the site but are operated by third parties.
Essential Cookies
We use minimal first-party cookies for:
- Remembering your theme preference (light/dark mode)
- Basic site functionality
Third-party services (analytics, ads) may set their own cookies as described above. We do not sell your data to third parties.
Advertising
We may display ads through Google AdSense to support our free tools. Google may use cookies to show relevant ads based on your browsing history. You can opt out of personalized ads through Google's Ad Settings.
What We Don't Collect
To be clear, we (ETG Calculator) do not collect or store:
- Your calculation inputs (drink amounts, times, body weight, etc.)
- Personal identification information (name, email, etc.) unless you contact us
- Precise location data
Note: Third-party services (Cloudflare, Google, Microsoft) may process data such as IP addresses according to their own privacy policies linked below.
Third-Party Services
We use these services to operate the site:
| Service | Purpose | Privacy Policy |
|---|---|---|
| Cloudflare | Hosting & security | Link |
| Google Analytics | Usage statistics | Link |
| Microsoft Clarity | UX improvement | Link |
| Google AdSense | Advertising | Link |
Your Rights
You have the right to:
- Opt out of analytics: Use browser extensions like uBlock Origin or disable JavaScript
- Opt out of personalized ads: Visit Google Ad Settings
- Contact us: Email us at contact@etg-calculator.org with any privacy questions
Changes to This Policy
We may update this policy occasionally. Changes will be posted on this page with an updated date. Continued use of the site after changes constitutes acceptance.
Contact Us
Questions about privacy? Email us at contact@etg-calculator.org.