Backend Prep

Privacy

This deferred web product stores practice progress locally in your browser, uses Trei analytics and AdSense when public, reports masked non-fatal client issues to CodeServer, and routes feedback through trei.dev/feedback.

Delete your account: Signed in, open premium, then delete account, and confirm. Trei deletes your learning account data for every Trei prep site: your Premium entitlement, purchase-restore record, and any unfinished checkout. Progress this site saved in your browser is cleared and you are signed out; other Trei prep sites keep their own browser progress until you clear it there. Deleting does not cancel an active Premium renewal; email contact.gangwar@gmail.com to stop it. Invoices stay with Razorpay or Dodo Payments, and Trei keeps only payment and subscription reference numbers, with no name or email, for tax and accounting as the law requires. Your Google or email sign-in is shared with other Trei products and is not removed; email us to remove it or to ask for deletion without signing in.

Children's privacy: Backend Prep is not directed at children under 13, and we do not knowingly collect information from them. If you believe a child under 13 has given us information, email contact.gangwar@gmail.com and we will delete it.

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