Privacy notice

Information used

• Email address and sign-in information for Email OTP accounts.
• Practice answers, feedback and saved attempt history linked to an account where those features are used.
• Student feedback submissions, including an optional contact email and chapter or page reference. The form does not require sign-in.
• For payments, the UPI transaction reference, account email, amount, review decision and access dates. We do not ask for a UPI PIN or card number.
• First-party visitor and session identifiers stored in the browser, page paths, device category, referring website and approximate country for usage analytics.

How it is used

Supabase supports account sign-in and parts of student data; the site’s hosting and database services serve pages and store other records. We review student feedback to improve lessons and the website, and use an optional contact email to reply. Your UPI app and payment providers handle the transfer. We use transaction details to verify a claim before granting access, and analytics to understand use and improve the site.