1. What cookies are
Cookies are small text files stored on your device. We also use functionally-similar browser storage (localStorage) for some preferences. This policy covers both.
2. Categories we use
Sign-in session, security tokens, your cookie-consent choice itself, and your theme + units preferences. The Service cannot function without these, so they are not subject to consent.
PostHog product analytics — which features get used, where flows break. Off until you accept. Helps us improve the product; no advertising use.
Reserved for future ad-attribution / retargeting. Currently dormant — no marketing cookies are actually set yet. Listed for transparency.
When you arrive from one of our ads we store a first-touch utm tag so we can measure which campaign brought you. It carries no personal identifier and expires after 90 days.
3. Managing your choice
On your first visit a banner lets you Accept all, Reject (everything but strictly- necessary), or Customise each category. You can change your decision any time — clearing your browser cookies re-shows the banner, and we re-ask for consent every 12 months and whenever this policy materially changes.
Most browsers also let you block or delete cookies in their settings. Blocking strictly-necessary cookies will break sign-in.
4. Third parties
Our analytics provider (PostHog) and infrastructure providers may set their own cookies when their features are active. See the sub-processor list in our Privacy Policy for who processes data on our behalf.
5. Contact
Questions about cookies? Get in touch.