Cookie Policy
Last updated: April 2026
This page explains how the SellMate AI website and Chrome extension use cookies and similar local storage technologies.
1. What we store
We do not set tracking cookies and do not use third-party analytics or advertising cookies. We only use browser localStorage / sessionStorage and, where strictly necessary, functional cookies. These are classed as strictly necessary and do not require consent under the EU ePrivacy directive.
2. What we actually use
| Name | Type | Purpose | Duration |
|---|---|---|---|
| sellmateSession | localStorage | Keeps you signed in across reloads. Access token, refresh token, user profile. | Until logout or token expiry (15 min access / 7 day refresh) |
| sellmateLang | localStorage | Remembers your selected interface language. | Persistent, until cleared |
| sellmate_oauth_* | sessionStorage | Short-lived state and nonce used to complete sign-in without being replaced by a third party. | Until the tab is closed |
| sellmateLogoutAt | Extension storage | Signals the extension and website to clean up after logout, preventing stale sessions. | Until next login |
| __Host-GAPS (Google) | Third-party cookie | Set by Google Identity Services when you sign in with Google. Governed by Google's privacy policy. | Up to 2 years (Google controlled) |
| Stripe cookies | Third-party cookie | Set by Stripe during checkout to prevent fraud. Governed by Stripe's privacy policy. | Set only during payment flow |
3. Third-party services
Google Identity Services (Google Sign-In) and Stripe (payments) may set their own cookies when you use those features. We do not control these cookies. See the respective provider policies for details.
4. How to control cookies
You can clear all site data and cookies from your browser settings at any time. Doing so will sign you out and reset your language preference. You can also disable third-party cookies in your browser, which will prevent Google Sign-In and Stripe checkout from working.
5. Changes to this policy
We may update this Cookie Policy from time to time. The current version always sits at this URL with a "Last updated" date.
6. Contact
Questions about cookies or privacy: Privacy Policy or email privacy@sellmate.store.