Last updated: 1 April 2026
Section 01
This Cookie Policy explains how Adchemy Ltd ("Adchemy", "we", "us", or "our") uses cookies and similar technologies on our website and platform at adchemy.com.
When you first visit Adchemy, you will see a cookie consent banner. You can choose to accept all cookies, reject optional cookies, or customise your preferences. Essential cookies cannot be disabled as they are required for the platform to function — including keeping you signed in.
This policy should be read alongside our Privacy Policy.
Section 02
Cookies are small text files placed on your device by a website when you visit it. They are widely used to make websites work, improve performance, and provide information to website owners.
Adchemy also uses localStorage (a browser storage mechanism) to remember your cookie consent preferences. This is not a cookie but functions similarly — it stores a small piece of data in your browser.
Section 03
Essential (always active)
Analytics (optional)
Marketing (optional)
Section 04
The following cookies and storage items are currently set by Adchemy:
Authentication cookies (set by Supabase)
Cookie name
Type
Purpose
Duration
sb-*-auth-token
Essential
Stores your authentication session to keep you signed in
Session / up to 1 week
sb-*-auth-token-code-verifier
Essential
PKCE code verifier for secure OAuth flows
Session
Consent preferences (localStorage)
Cookie name
Type
Purpose
Duration
adchemy-cookie-consent
Essential
Stores your cookie consent choices (necessary, analytics, marketing)
Persistent (until cleared)
Cookie names prefixed with sb-* are set by Supabase and may vary based on your project configuration.
Section 05
The following third-party services may set cookies or process data when you use Adchemy:
Supabase
Our authentication and database provider. Sets session cookies to manage your login state. See Supabase Privacy Policy.
Google (Gemini API)
Used for AI image generation. Your prompts and uploaded images are sent to Google for processing. Google does not set cookies on our site but processes data server-side. See Google Privacy Policy.
Vercel
Our hosting provider. May set performance and security cookies. See Vercel Privacy Policy.
Section 06
You can manage your cookie preferences in the following ways:
adchemy-cookie-consent key. The banner will reappear on your next visit.Important: Rejecting optional cookies does not affect your ability to use Adchemy. Essential cookies (login, security) are always active and cannot be disabled.
Section 07
Under UK GDPR, you have the right to withdraw consent for optional cookies at any time. This will not affect the lawfulness of any processing carried out before withdrawal.
For broader data rights (access, erasure, portability), please refer to our Privacy Policy or contact us at privacy@adchemy.com.
Section 08
We may update this Cookie Policy from time to time, particularly as we add new features or third-party integrations. The "Last updated" date at the top of this page will reflect any changes.
If we introduce new optional cookies, we will update the consent banner so you can make an informed choice.
Section 09
For any questions about our use of cookies:
Email: privacy@adchemy.com
Post: Legal Department, Adchemy Ltd, London, United Kingdom