Last updated: April 2026
Cookies are small text files stored on your device when you visit a website. They help us provide and improve our services by remembering your preferences, maintaining your session, and understanding how you use the platform.
These cookies are required for the platform to function and cannot be disabled. They include: (a) Authentication cookies — maintain your login session so you don't need to re-authenticate on every page. (b) Security cookies — protect against cross-site request forgery and other security threats. (c) Preference cookies — remember your selected theme (light/dark mode), sidebar state, and other UI preferences. These cookies do not collect personal information beyond what is necessary for platform operation.
With your consent, we use analytics cookies to understand how visitors interact with Archstone. We use PostHog for product analytics, which collects anonymized usage data including pages visited, features used, session duration, and interaction patterns. This data helps us identify usability issues and prioritize improvements. Analytics cookies can be disabled through our cookie consent banner without affecting platform functionality. PostHog data is retained in anonymized form and is not shared with third parties for advertising purposes.
We use Sentry for error monitoring, which may set cookies to track error sessions. Sentry receives anonymized error reports (stack traces, browser information) to help us identify and fix bugs. We have disabled the collection of personally identifiable information in Sentry. Error monitoring cookies are classified as essential because they help us maintain platform stability and security.
Archstone does not use third-party advertising cookies or tracking pixels. We do not participate in ad networks or sell cookie data. The only third-party services that may set cookies are: Stripe (for secure payment processing on billing pages) and Vercel (for performance optimization and edge caching). These cookies are essential to their respective functions and are not used for cross-site tracking.
You can manage your cookie preferences at any time through: (a) Our cookie consent banner — click the cookie icon in the bottom-left corner of the page to update your preferences. (b) Your browser settings — most browsers allow you to block or delete cookies. Note that blocking essential cookies may prevent the platform from functioning correctly. (c) Opt-out links — for PostHog analytics, you can opt out by declining analytics cookies in our consent banner. Changes to your preferences take effect immediately for new cookies. Existing cookies from declined categories will expire naturally or can be cleared through your browser settings.
Cookie retention periods vary by type: (a) Authentication session cookies expire when you close your browser or after 7 days of inactivity. (b) Persistent login cookies ("remember me") expire after 30 days. (c) Cookie consent preferences are stored for 1 year. (d) Analytics cookies expire after 12 months. (e) Theme and UI preference cookies expire after 1 year.
We may update this Cookie Policy from time to time to reflect changes in our practices or applicable laws. We will post the updated policy on this page and update the "Last updated" date.
For questions about our use of cookies, please contact us at privacy@archstone.app.