Privacy Policy
Last updated August 31, 2026.
What we collect
When you create an account, we collect the email address and password you sign up with (handled by our authentication provider, Supabase. We never see or store your password in plain text). If you submit your own mahjong variant for the site, that submission is stored and linked to your account.
What it's used for
Solely to run your account: signing you in, keeping you signed in, and associating any variant submissions with you. We don't sell your data or use it for advertising.
Who we share it with
We use a small number of service providers to run the site: Supabase (account and data storage) and Resend (sending password-reset emails). Once purchases are available, Stripe will process payments. Stripe handles your card details directly, and we never see or store them.
Cookies
We use a single session cookie to keep you signed in. We don't use tracking or advertising cookies.
Your data
To ask a question, or to request that your account and data be deleted, email casualchinesemahjong@gmail.com.