Cookies
We use a single cookie, to keep you signed in. There are no advertising or tracking cookies, so there is nothing to accept or decline.
Last updated: 15 October 2026.
| Name | Purpose | Type | Lasts |
|---|---|---|---|
| lightng_session | Keeps you signed in to the app | Essential, first-party, HTTP-only | 30 days, or until you sign out |
Other storage
- The app stores small preferences in your browser's local storage, such as which guided tours you've finished and the last record you opened. They never leave your device.
- Our website analytics (Vercel Web Analytics) are cookieless and don't identify you across sites.
- Product videos are served from YouTube's privacy-enhanced domain, and nothing loads from YouTube until you press play.
Because we only use what is strictly necessary, the EU and UK cookie rules don't require a consent banner. If we ever add optional cookies, we'll ask first.