Updated October 29, 2026
We store your account identifier, email address, authentication information, and preferences to provide your account. When you use saved features, we also store the information you enter, including portfolio positions and balances, watchlists, price-alert thresholds, options journal entries, notes, and email settings. You choose what to save.
We keep Stripe customer, checkout, payment and subscription identifiers, payment status, and purchased entitlements to provide and support paid access. Stripe processes payment details; Theory A does not store your full card number or security code.
We use Supabase for account authentication and data storage, Stripe for billing, Vercel for hosting and website analytics, and Resend for email delivery. These providers process information needed to operate their services. Hosting and security logs may include technical request information. Website analytics help us understand aggregate usage and improve the site.
We use cookies or browser storage to keep you signed in and remember settings. Signing in on another device makes your saved account data and paid access available there.
Advertising is paused for everyone while we wait for Google AdSense approval. We publish site ownership information for Google to verify, but do not load advertising scripts or set advertising cookies. We will update this policy before enabling advertising.
When a link can earn Theory A a commission, we disclose that next to the promotion. We do not send your saved portfolios, journals, or alert settings to advertisers. Following an affiliate link takes you to another provider, whose privacy policy and tracking practices apply.
Lifetime Ad-Free and active Premium subscriptions hide Theory A advertising and promotional placements while you are signed in. Ad-free access does not disable essential account storage or website analytics.
We use email for account and billing communications and, if enabled and eligible, price-alert digests. You can manage optional email preferences in Settings and use unsubscribe links where provided. Essential account and payment communications may still be sent.
We retain saved account data while it is needed to provide the service. You can remove saved positions, journal entries and alerts through the relevant tools. To request account deletion or ask about your information, email support@theory-a.com. Some billing, security, backup, or transaction records may need to be retained to meet legal obligations, resolve disputes, or prevent fraud.
We do not sell your saved personal account data. We may disclose information when required by law or needed to protect the service and its users. This policy works together with our terms of service.