Privacy Policy.

Last updated October 7, 2026.

Information we use

Auxus uses your email, optional name, learning preferences, saved vocabulary, review progress and watch allowance to provide your account across devices. Supabase handles authentication and stores your password in a protected, hashed form. Passwords and card numbers are never included in the website source.

Sessions and local storage

Your browser stores a session token and learning preferences. These are needed to keep you signed in and remember your progress. Log out on shared devices. This version does not use advertising or analytics cookies.

Service providers

Supabase processes account and learning data. Cloudflare serves the website. Stripe processes subscriptions, billing information and payment details. Auxus stores the Stripe identifiers and subscription status needed to manage your plan, and does not receive your full card number.

Videos

Clips load from Wikimedia and the official YouTube embedded player. Those providers receive the requests needed to play the content and may process device and network information according to their own policies. See Google’s Privacy Policy and Wikimedia’s Privacy Policy.

Access and retention

Account access rules limit your profile, saved words and allowance to your account. Learning data is retained while your account is active. Billing records may be kept for accounting and legal obligations. You can export saved vocabulary from My words.

Control your account

You can change learning preferences, export words, log out and manage or cancel a paid subscription from your account.