Privacy Policy

Last updated: June 30, 2026

What we collect

When you sign in with Google or a magic link, we store your email address and a profile record so we can sync your study progress across devices.

Study data

We store which words you've marked as learned, when you learned them, and any notes you've written. This data is tied to your account so it can sync between devices. If you don't sign in, your study progress stays in your browser's local storage.

Usage analytics

To understand which parts of the app are useful — so we can improve them — we record basic usage events: which pages you open and in what order. These are first-party only: stored on our own servers, never shared with or sent to any third party, and never used for advertising.

Usage events are tied to a random, anonymous identifier kept in your browser (a first-party cookie and local storage). That identifier is not your name or email; if you're signed in, we also associate the events with your account so the data syncs with the rest of your study record. We do not track you across other websites.

What we don't collect

• No third-party analytics or tracking scripts
• No advertising data
• No cross-site tracking
• No data sold to third parties

Third-party services

• Supabase — hosts our database and handles authentication
• Google OAuth — used if you choose to sign in with Google
• Netlify — hosts the website

Each service has its own privacy policy governing how they handle your data.

Data deletion

You can reset all your study data from within the app at any time. To delete your account entirely, email [email protected].

Changes

If this policy changes, we'll update the date at the top of this page.