Your curiosity. Your data.

You can browse facts and practise chemistry, physics and mathematics without an account. Guest favourites and study progress stay in this browser. Mock exams require a signed-in account with all original practice questions for that Year 12 subject passed. Years 10 and 11 do not have mock exams.

When you create an account

We use Supabase to verify your email or Google sign-in and store your account identifier, email address, nickname and saved fact identifiers. Your account lets you sync favourites and study progress between devices.

Study progress

When you are signed in, lesson completion, practice results and review dates are saved to your account. Written practice responses are self-assessed against the marking points. Practice answer text, sketches and your place in each lesson are saved in this browser, separately for guests and each account. These drafts do not sync between devices; they are not saved to the database. Guest progress stays separate from account progress. Pending account progress stays on this device until it can sync.

Mock exam attempts

Mock exam answers, sketches, self-assessed marks, your question position and remaining time sync to your account in Supabase. Each paper version has its own saved attempt. A local backup keeps changes until they can sync. Results reports use these answers and marks to suggest revision topics. Written marks are self-assessed. If devices have different drafts, you choose which copy to continue. Signing out does not erase local backups; clear this website’s browser data to remove them from the device.

Suggestions and feedback

Suggestions are private messages to the creator. When you submit one, we store your message, category, account identifier, display name and submission time in private Supabase storage. The creator can mark it as read or resolved. When email notifications are enabled, new messages are also emailed to the creator's private inbox using Resend. These notifications include your note, category, display name, submission time and a private record link. Your sign-in email, IP address and device details are not included in the notification. Contact details are included only if you choose to write them in your note. A private delivery queue stores the message temporarily for retries, then retains a delivery status record. Messages are not public. They may be retained after account deletion to track reported issues; please do not include sensitive information.

Cookies and local storage

Essential cookies keep you signed in and return you to the page where you started Google sign-in. Local storage holds guest favourites, study progress, practice drafts, mock exam drafts and pending account changes. Importing guest favourites is optional. Guest study progress is not imported into your account.

Your choices

You can remove favourites, change your nickname or delete your account from the account window. Account deletion removes your weirdfacts profile, cloud favourites, synced study progress and cloud mock exam attempts. It does not delete your Google account or automatically clear this browser’s local data. Use your browser’s site-data settings to remove local favourites, progress, practice drafts and mock exam drafts.

Service providers

Supabase processes account and database requests. Google handles Google sign-in if you choose it. Our email delivery provider sends requested sign-in codes, and Resend delivers suggestion notifications to the creator when enabled. The hosting and authentication services may retain operational or security logs according to their policies.