Last updated: 2025
This Privacy Policy explains how poolchemcalc.app ("we", "us", "our") handles information when you use our website.
1. Information We Collect
This website does not require account registration and does not directly collect personally identifiable information. All calculations are performed locally in your browser — no calculation data is transmitted to our servers.
2. Google Analytics (GA4)
We use Google Analytics 4 to understand how visitors use our site. GA4 collects anonymised data including pages visited, time on site, and general geographic region. This data is processed by Google and subject to Google's Privacy Policy. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
3. Google AdSense
We display advertisements served by Google AdSense. Google uses cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising by visiting Google Ads Settings. For more information about Google's data practices see the Google Privacy Policy.
4. Formspree (Feedback Form)
If you submit feedback via our contact form, your message and optional email address are processed by Formspree. Formspree's privacy policy applies to data submitted through the form. We only use submitted information to respond to your feedback and do not share it with third parties.
5. Amazon Affiliate Links
This site contains affiliate links to Amazon.com. When you click these links, Amazon may set cookies on your device. Amazon's privacy policy applies to any data collected through these links.
6. Cookies
We do not set our own cookies. However, third-party services we use (Google Analytics, Google AdSense, Amazon) may set cookies on your device. You can control cookies through your browser settings.
7. Data Retention
We do not store personal data on our own servers. Any data processed by third-party services is subject to their respective retention policies.
8. Your Rights
Depending on your location, you may have rights regarding your personal data including the right to access, correct, or delete data held about you by third-party services. Please refer to the privacy policies of Google and Formspree for information on exercising these rights.
9. Children's Privacy
This website is not directed at children under the age of 13. We do not knowingly collect data from children.
10. Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date.
11. Contact
If you have questions about this Privacy Policy, please use the feedback form on our home page.