Last updated: 10 June 2026.
1. What cookies are
Cookies are tiny files a website saves in your browser to remember things between page loads. The classic example: keeping you signed in so you don't have to enter your password on every screen. Cookies aren't malicious by default; the question is what information a site stores in them and what it does with that information.
Some cookies are strictly necessary for a site to work at all. Others (analytics, advertising) are for the site operator's convenience and require your consent.
2. The cookies YourTracker sets
All three are strictly necessary. None of them is shared with a third party.
| Cookie | What it does | Lifetime |
|---|---|---|
| sb-… | Supabase auth session — keeps you signed in across pages. Without it you'd have to re-enter your 6-digit code on every load. | 1 hour, silently refreshed |
| yt_installed | Records that you've installed the PWA to your home screen. The onboarding flow checks this to decide whether to show the install screen first. | 1 year |
| yt_pending_product_updates | Holds the product-updates checkbox value from the email step until you're signed in and we can save it to your saved preferences. Cleared immediately after use. | 30 minutes, one-shot |
3. Cookies we don't use
- Analytics cookies — no Google Analytics, no Mixpanel, no Amplitude, no Segment. We don't measure your behaviour on the marketing site or in the app.
- Advertising cookies — no Facebook pixel, no Google Ads remarketing, no programmatic ad cookies.
- Third-party tracking cookies — we don't load any third-party script that sets its own cookies.
- Fingerprinting libraries — we don't collect or hash any device-fingerprint signal.
4. Why there's no consent banner
Under the Privacy and Electronic Communications Regulations (PECR) and the UK GDPR, strictly-necessary cookies don't require consent. The three cookies above are all strictly necessary — without them, sign-in doesn't work, install detection doesn't work, and the onboarding email-preference flow breaks.
We'd rather show no banner than waste your time clicking "Accept" on a banner that explains we're not tracking you. If we ever add non-essential cookies, we'll add a proper consent flow.
5. How to control cookies
You can clear or block cookies in your browser settings. Doing so will sign you out of YourTracker and reset the install hint; you'll need to sign in again.
- Safari (iOS):Settings → Safari → Privacy & Security → Manage Website Data, or use the in-page settings on Apple's documentation.
- Safari (macOS): Apple's documentation.
- Google Chrome: Google's documentation.
- Firefox: Mozilla's documentation.
- Microsoft Edge: Microsoft's documentation.
6. Changes to this policy
If we change which cookies we use, this page is updated. For material changes (e.g. adding any non-essential cookie) we'll post a one-time in-app banner so you can review the change before accepting.
7. More on data
For the full picture of what we collect and how it's stored, see our Privacy Policy.
8. Contact
Questions about cookies: dpo@yourtracker.co.uk.