Cookies

Cookie Policy

This policy explains the cookies and similar technologies we use, what they do, and how you can control them.

Last updated: 8 September 2026

This is a general template provided for convenience and is not legal advice. Have it reviewed by a qualified professional and update the company details, contact address and governing law to match your business before relying on it.

1. What cookies are

Cookies are small text files stored on your device by your browser. Similar technologies include localStorage, which lets a site remember preferences locally. We use both sparingly.

2. How we categorise them

  • Strictly necessary — required for the platform to work (signing you in, keeping you signed in, remembering your theme). These are always on and don’t need consent.
  • Optional — anything not essential (e.g. future analytics). These are only used if you accept them in the consent banner.

3. Cookies we use

Name / originTypePurposeRetention
Clerk session (__session, __client, etc.)Strictly necessaryAuthenticates you and keeps you signed in.Session / up to ~1 year
pal-theme (localStorage)Strictly necessaryRemembers light/dark theme choice.Until cleared
pal-cookie-consent (localStorage)Strictly necessaryRemembers your cookie choice so we don’t ask again.Until cleared
pal-progress / pal-notifications (localStorage, demo only)Strictly necessaryStores demo-mode progress locally when no account is used.Until cleared
Stripe (__stripe_mid, __stripe_sid)Strictly necessaryFraud prevention during checkout, set by Stripe on payment pages.Session / up to 1 year
Meta Pixel (_fbp, _fbc) — Meta PlatformsOptional (advertising)Measures visits and purchases that come from our Facebook and Instagram ads so we can see which ads work. Only loaded if you accept optional cookies.Up to 90 days

The Meta Pixel is our only third-party advertising technology. It never loads unless you choose “Accept all” in the consent banner.

4. Managing your choice

When you first visit, a banner lets you accept or decline optional cookies. You can change your mind at any time by clearing the pal-cookie-consent value (via your browser’s site-data settings), which makes the banner appear again. You can also block or delete cookies in your browser settings, though strictly-necessary cookies are needed for sign-in to work.

5. More information

See our Privacy Policy for how we handle personal data more broadly. Questions? Email privacy@pro-ai-lab.uk.

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