We collect the minimum information required to operate the service: your email address (for sign-in), payment method (handled by Stripe — we never see card numbers), and your preferences (currency, risk-calculator inputs). We use Supabase for authentication and data storage, Stripe for payments, Twelve Data and Binance for market data, and a third-party AI provider for analysis. We do not sell your data. You can request export or deletion of your account data by emailing hello@xupertrading.com.