Privacy Policy

When you create an account, we receive your first name, email address, account ID, and, if you use Google sign-in, the basic profile details Google shares. Supabase securely handles authentication. Origami Prep never receives your Google password.

Origami Prep may store practice answers, scores, goals, saved questions, and study-plan activity so your progress can be shown back to you. Some progress may remain only in your browser while account sync is being completed.

We use this information to operate your account, save progress, personalize study recommendations, protect the service, and fix problems. We do not sell personal information or use it for third-party advertising.

Supabase provides authentication and database infrastructure. If you choose Google sign-in, Google also processes information under its own privacy policy.

If you arrive through a referral link, we store the referral code in a cookie on your device for up to 30 days so the invitation can be credited to the friend who sent it. When a referral is created we also record technical signals used solely to detect abuse of the reward program: a one-way salted hash of your IP address, a hash of the surrounding network range, a coarse device signature derived from your browser’s user agent and language headers, your email domain, and, at subscription, the fingerprint Stripe derives from the payment card. We do not store your IP address in readable form, and these hashes cannot be reversed back to an address. We do not use canvas fingerprinting, font probing, or any covert tracking, and none of these signals are used for advertising or shared with advertisers. They are used to prevent one person from claiming rewards for referring themselves, to enforce reward eligibility under the Terms, and to investigate suspected fraud.

You can avoid Google sign-in by using email and password. You may decline a referral by visiting the site without a referral link, and you may clear the referral cookie in your browser at any time. You may request access, correction, or deletion of your account information, including referral records, through the support contact provided on the site.