Privacy Policy

提示：本页重点说明数据收集、使用与删除方式，中文仅作辅助说明。

Information We Collect

• Email address (when subscribing or purchasing)
• Payment information (processed by Payhip; we never see full card details)
• Usage data (pages visited, general analytics via GitHub Pages)

How We Use Your Information

• Deliver purchased products
• Send free resources you have requested
• Notify you about new products (only if you have opted in)
• Improve our website and resources

Third-Party Services

We use the following third-party services:

• Payhip (payment processing and product delivery). See Payhip's privacy policy.
• Formspree (email forms). See Formspree's privacy policy.
• GitHub Pages (website hosting). See GitHub's privacy policy.
• Google Fonts (typography). See Google's privacy policy.

Email Communications

• We only send emails if you have explicitly subscribed
• Every email includes an unsubscribe link
• We never sell or share your email address with third parties
• You can request deletion of your email at any time

Cookies

• We do not use tracking cookies
• Third-party services may set technical cookies
• We do not use advertising or marketing cookies

Data Security

• All payments are processed via Payhip's secure infrastructure
• We do not store payment card information
• Email addresses are stored securely

Children's Privacy

• Our resources are designed for students aged 14+
• We do not knowingly collect data from children under 13
• Parents may contact us to request removal of any data

Your Rights

You have the right to:

• Request access to your personal data
• Request deletion of your personal data
• Unsubscribe from emails at any time
• Contact support@25maths.com to exercise any of these rights

Changes to This Policy

• We may update this policy periodically
• Changes will be posted on this page with an updated date
• Continued use of the website constitutes acceptance of the updated policy

Contact

For privacy-related questions, contact us at support@25maths.com

Website: www.25maths.com