1. Overview
ChemLearn ("we", "this site") is a free educational website. We respect your privacy and keep data collection to a minimum. This policy explains what little information is involved when you use the site.
2. Information we store locally
We use your browser's localStorage to remember your preferences on your own device only. This is never sent to any server:
- Theme choice (light/dark mode)
- Completed lesson progress
We do not require accounts, and we do not ask for names, emails or any personal information.
3. Cookies and advertising
This site is supported by advertising. If advertising is enabled, we may use Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.
- Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.
- You may opt out of personalized advertising by visiting Google Ads Settings.
- For more about how Google uses data when you use our partners' sites or apps, see Google's Privacy & Terms.
4. Analytics
If enabled in future, basic anonymous analytics (e.g. page view counts) may be collected to improve the site. No personally identifiable information is collected.
5. Children's privacy
ChemLearn is designed for students of all ages and collects no personal information from anyone, including children.
6. Changes to this policy
We may update this policy from time to time. Any changes will be posted on this page with an updated date above.
7. Contact
If you have questions about this policy, please reach out via the contact information published on the site.