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Privacy policy

How your account, billing and practice data are handled.

Last updated September 6, 2026
Privacy policyTerms of service

On this page

  1. Account information
  2. Payments and hosting
  3. Practice history and storage
  4. Managing your data
  5. Privacy questions

01Account information

Supabase handles sign-in and stores account information, such as your email address and the name or avatar supplied by your sign-in provider. Authentication uses cookies to keep you signed in.

The membership record includes Stripe customer and subscription identifiers, subscription status, and the date through which access is available.

02Payments and hosting

Stripe processes payments and manages billing details. The application stores payment references rather than full card details.

Vercel hosts the website. These service providers may process connection information and security logs when you use the service.

03Practice history and storage

Academy progress and practice history are stored in this browser, separately for each signed-in account. They are not uploaded to your account or synchronized between devices. Preferences are also local to this browser.

  • History limit: the latest 300 ended activities per section.
  • Separate saves: older browser history is available separately and is not automatically assigned to the current account. Local developer preview saves are also separate from signed-in saves.
  • Completion receipts: a minimal receipt containing a result identifier and credit status, but no answers, prevents a retry from restoring a deleted review or awarding duplicate credit.

04Managing your data

  • Export: download saved session history as CSV from History.
  • Delete reviews: delete individual reviews or all reviews in the selected history source without losing earned course progress.
  • Clear browser data: this removes locally stored progress, preferences, history, and receipts for this site.

You can sign out using Account and manage an existing subscription using Billing. Clearing browser data or signing out does not cancel a subscription.

05Privacy questions

For account or privacy requests, contact frankyang233@gmail.com.

For membership and payment information, see our Terms of service.