Privacy Policy

Last updated: July 2026.

What we collect

• Account data: your email address and a hashed password (Argon2id — we never store or see your actual password).
• Study data: the questions you answer, your scores, streaks, and progress, used to power review queues and your readiness score.
• Tutor conversations: messages you send the AI tutor, stored to keep conversation context per question.

What we never do

• We never sell, rent, or share your personal data with third parties for marketing.
• We show no advertising and use no ad trackers.
• We never send marketing email. Email is used only for account functions (password reset).

AI features

Explanations and tutor answers are generated by AI models running on Cloudflare's network. Your question context and tutor messages are processed there to produce answers; they are not used to train models.

Your choices

You may request account deletion at any time via the contact page — your account, progress, and tutor history will be removed.