Privacy Policy
Last updated: 11/11/2025
Introduction
Baby Sleep Calculator ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our website.
Information We Collect
Information You Provide
We collect minimal information that you voluntarily provide when using our calculators:
- Baby's birth date (stored locally in your browser, not on our servers)
- Optional premature birth information
Automatically Collected Information
We may collect certain information automatically:
- Device type (mobile, desktop, tablet)
- Browser type and version
- IP address (hashed for privacy)
- Usage analytics (anonymized)
How We Use Your Information
- To provide and improve our calculator tools
- To analyze usage patterns and improve user experience
- To comply with legal obligations
Data Storage and Security
We use industry-standard security measures to protect your information. Calculator data is stored locally in your browser using localStorage. We do not store personal information on our servers unless required for analytics (in anonymized form).
Third-Party Services
We use the following third-party services:
- Google Analytics: For website analytics (anonymized data)
- Vercel: For website hosting
- Supabase: For database hosting (anonymized usage data only)
Children's Privacy (COPPA)
Our website is designed for parents and caregivers. We do not knowingly collect information from children under 13. All information collected is from parents about their children, which is permitted under COPPA.
Your Rights
You have the right to:
- Access your data (stored locally in your browser)
- Delete your data (clear browser localStorage)
- Opt-out of analytics (use browser privacy settings)
- Request deletion of any server-stored data
Cookies
We use essential cookies for website functionality and analytics cookies to improve our services. You can control cookies through your browser settings.
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 questions about this Privacy Policy, please contact us.