Privacy

What we store

Without an account: your progress (completed lessons, bookmarks, quiz answers, drill grades and the days you were active) is stored only in your browser's local storage. It never leaves your device.

With an account: the same progress is stored against your account id so it follows you between devices. Sign-in itself is handled by Clerk, which stores your email address and, if you use a social login, the identity that provider returns.

We do not store payment card details. Payments, when Pro launches, are handled by Stripe.

Analytics

We measure which lessons are completed, which filters are used and which pages are visited, so we know what to write next. Events are tied to your account id when signed in and to an anonymous id otherwise. They never include lesson notes, answers you typed, or your email address.

You can block analytics with any content blocker; the product works the same.

Your choices

Export: Settings lets you download every piece of progress we hold as JSON.

Delete: deleting your account in Clerk removes your identity; email us to have progress rows removed as well. Clearing your browser storage removes the local copy.

Contact

Questions about this page: privacy@backplane.example. Replace with the real address before launch.