Last updated: April 2026
We collect your email address and password when you create an account. We use this only to authenticate you and communicate product updates if you opt in.
We store your lesson progress, preferred depth level, and last visited node to enable the resume feature. This data is tied to your account and can be deleted on request.
We use PostHog for product analytics — this tracks events like lesson starts, node clicks, and depth toggles. No personally identifiable information is shared with PostHog beyond your user ID.
We do not sell your data. We do not use your data for advertising. We do not share it with third parties beyond the infrastructure services (Supabase for database, Cloudflare for hosting) required to run the product.
Full privacy policy is being drafted and will be published here. Questions? hello@crin.ai.