Legal
Effective 25 September 2026
Cookies are small text files stored in your browser when you visit a website. They allow the site to recognise you on subsequent visits and maintain state (like keeping you logged in).
LetSense uses essential cookies (required for the service to function) and optional analytics and advertising cookies (only set if you click Accept on the cookie banner on the marketing site).
| Cookie name | Purpose | Duration | Type |
|---|---|---|---|
next-auth.session-token | Keeps you signed in to your account | 30 days | Essential |
next-auth.csrf-token | Protects against cross-site request forgery | Session | Essential |
next-auth.callback-url | Stores the page to redirect to after sign-in | Session | Essential |
onboarding_skipped | Remembers that you skipped the onboarding flow | 1 year | Essential |
_ga, _ga_* | Google Analytics 4 — measures page visits and traffic sources on the marketing site only. Only set after you click Accept. | 2 years | Analytics (optional) |
_gcl_au | Google Ads — tells us when someone who saw or clicked one of our ads signs up. Only set after you click Accept. | 90 days | Advertising (optional) |
letsense-cookie-consent | Stores your cookie preference (Accept or Decline) | Permanent (localStorage) | Essential |
Essential cookies are required for the service to function. They cannot be disabled without breaking login and security features. Under UK PECR (Privacy and Electronic Communications Regulations), no consent is required for strictly necessary cookies.
We use Google Analytics 4 on the marketing site (letsense.co.uk public pages) to understand how visitors find and use the site. Analytics cookies are only set if you click Accept on the cookie banner. You can withdraw consent at any time by clearing your cookies or clicking Decline on the banner (clear letsense-cookie-consent from browser storage to see the banner again).
We also use Google Ads. If you click Accept, Google Ads sets a cookie on our site. It lets us count sign-ups that came from our ads. Google may also add your browser to a list of people who visited our site, so that we can show you our ads on other websites. Google may set its own cookies on its own websites (for example google.com and doubleclick.net) to do this. If you click Decline, none of this is turned on. You can change your mind in the same way as for analytics cookies (see above): clear letsense-cookie-consent and choose again.
GA4 and Google Ads data is processed by Google LLC under the UK GDPR International Data Transfer Addendum. See Google's Privacy Policy.
If you use Google sign-in, Google may set its own cookies during the OAuth flow. These are governed by Google's Privacy Policy.
Stripe (our payment processor) may set cookies during checkout. These are governed by Stripe's Privacy Policy.
Some pages show a YouTube video. Nothing loads from YouTube until you press play. When you press play, the video loads from YouTube's privacy-enhanced mode (youtube-nocookie.com), and YouTube may store data in your browser. This is governed by Google's Privacy Policy.
You can manage or delete cookies through your browser settings:
Note: disabling essential cookies will prevent you from signing in to LetSense.
We will update this policy if we add or change the cookies we use. The effective date at the top of the page reflects the latest version.
Questions about cookies or privacy: hello@letsense.co.uk.