Privacy Policy

1. Information We Collect

1.1 Information You Provide

We do not require account creation or login to use our calculators. Any information you voluntarily provide through contact forms or support requests may include:

• Email address (if you contact us)
• Name and company information (optional, for business inquiries)
• Project details you choose to share for support purposes

1.2 Automatically Collected Information

When you visit our website, we automatically collect certain technical information:

• IP address (anonymized)
• Browser type and version
• Operating system
• Pages visited and time spent on each page
• Referring website
• Device type (desktop, mobile, tablet)

2. How We Use Calculations Data

All calculations are performed client-side in your browser. This means:

• Your project measurements never leave your device
• We do not store, log, or transmit your calculation inputs
• No personal project data is sent to our servers
• Your privacy is protected by design

We may collect anonymized, aggregated usage statistics (e.g., "100 users used the pool calculator today") for analytics purposes, but these statistics cannot be traced back to individual users or their specific calculations.

3. Cookies and Tracking Technologies

3.1 Essential Cookies

We use essential cookies necessary for the website to function properly, including:

• Session cookies to maintain your browsing session
• Preference cookies to remember your measurement unit choices

3.2 Analytics Cookies

We use Google Analytics to understand how visitors interact with our website. Google Analytics uses cookies to collect information such as:

• Number of visitors and unique users
• Most popular pages and calculators
• Geographic location (country/region level only)
• Traffic sources (search engines, direct visits, referrals)

You can opt-out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

3.3 Managing Cookies

Most browsers allow you to control cookies through settings. You can typically find these settings in the "Options" or "Preferences" menu. Please note that disabling cookies may affect website functionality.

4. Third-Party Services

We use the following third-party services that may collect data:

• Google Analytics: Web analytics service (Privacy Policy: Google Privacy Policy)
• Netlify: Hosting provider (Privacy Policy: Netlify Privacy Policy)

These third parties have their own privacy policies. We do not control and are not responsible for their privacy practices.

5. How We Use Your Information

We use collected information for the following purposes:

• To provide and maintain our calculator services
• To improve website functionality and user experience
• To analyze usage patterns and optimize performance
• To respond to your inquiries and support requests
• To detect, prevent, and address technical issues
• To comply with legal obligations

6. Data Security

We implement industry-standard security measures to protect your information:

• HTTPS encryption for all data transmission
• Secure hosting infrastructure with Netlify
• Regular security updates and monitoring
• Minimal data collection principle (we don't collect what we don't need)
• Client-side calculations (no server-side storage of project data)

However, no method of transmission over the Internet or electronic storage is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

7. Your Privacy Rights

7.1 GDPR Rights (EU Users)

If you are located in the European Union, you have the following rights under GDPR:

• Right to Access: Request copies of your personal data
• Right to Rectification: Request correction of inaccurate data
• Right to Erasure: Request deletion of your data
• Right to Restrict Processing: Request limitation of data processing
• Right to Data Portability: Request transfer of your data
• Right to Object: Object to processing of your data

7.2 CCPA Rights (California Users)

If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA):

• Right to know what personal information is collected
• Right to know if personal information is sold or disclosed
• Right to opt-out of the sale of personal information
• Right to deletion of personal information
• Right to non-discrimination for exercising CCPA rights

Note: We do not sell personal information to third parties.

8. Data Retention

Since we do not store calculation data, there is nothing to retain regarding your project inputs. Analytics data is retained according to Google Analytics' default retention policies (14 months for user-level data). Contact form submissions, if any, are retained only as long as necessary to respond to your inquiry, then securely deleted.

9. Children's Privacy

Our services are not directed to individuals under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us, and we will delete such information.

10. International Data Transfers

Our website is hosted on servers that may be located in different countries. By using our service, you consent to the transfer of your information to countries outside your country of residence, which may have different data protection laws. We ensure that appropriate safeguards are in place to protect your data.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. We will notify users of significant changes by:

• Updating the "Last Updated" date at the top of this policy
• Posting a notice on our homepage for material changes

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.