✨SleepCalculatorApp
🇺🇸 English

🔒 Privacy Policy

Last updated: July 25, 2025

At SleepCalculatorApp.com, we respect your privacy. This policy explains what information we collect, how we use it, and how you can control your data.

1. About This Site

SleepCalculatorApp.com is a free online tool that helps users calculate ideal sleep or wake times based on 90-minute sleep cycles. The site does not require account registration or store personal input.

2. Information We Collect

We do not collect any personally identifiable information (PII). However, we may collect the following non-personal, anonymized data:

  • Device and browser information (e.g. screen size, browser version, operating system)
  • Interaction metadata (e.g. which calculator function was used, timestamps of usage)
  • Cookies and identifiers from third-party services (e.g. for analytics and advertising)

3. Use of Data

We use the above information to:

  • Analyze usage patterns to improve the site’s functionality and performance
  • Monitor traffic and detect bugs or abuse
  • Display relevant ads via Google AdSense and measure their effectiveness

4. Cookies

We use cookies for:

  • Analytics – understanding how users interact with the site
  • Advertising – serving personalized ads via Google AdSense

You may disable cookies in your browser settings if you prefer not to be tracked.

Learn more about how Google uses your data: Google’s Privacy & Terms

5. Your Choices

  • You can disable cookies or use ad blockers.
  • You can turn off ad personalization via your Google Ads Settings.

6. Data Security

We do not collect or retain any data that can personally identify users. All analytics and logs are stored in aggregate form and processed securely through third-party tools (e.g. Google Analytics).

7. 📬 Contact

If you have questions about this Privacy Policy, please contact us at support@sleepcalculatorapp.com.