Privacy policy

Last updated 2026-10-19

• Calculators: everything you type runs in your browser. Nothing is sent to us or stored on a server.
• Analytics: we may use privacy-friendly analytics to count page views. They do not identify you personally.
• Purchases: payments are handled by Stripe. We receive your name, email and purchase details to deliver the product, never your card number. See Stripe's privacy policy.
• Email: if you write to us, we keep your message only to reply.
• Your rights: ask us at hi@mengmusanqian.com.cn to see or delete any data we hold about you.

Data controller: MENCIUS'S MOTHER EDUCATION PLANING LIMITED (孟母三遷教育規劃有限公司), Hong Kong.