Privacy Policy

Last updated June 24, 2026. This policy explains what Chess Buff collects and how it is used.

Information We Collect

Chess Buff collects account details from Google sign-in, subscription status from Stripe, PGNs you upload or paste, study folders, move comments, variations, and saved learning.

How We Use Information

We use this information to provide your training workspace, keep your data scoped to your account, process subscriptions, operate MCP coach tools, troubleshoot issues, and improve reliability.

Payments

Payments are processed by Stripe. Chess Buff does not store full card numbers or bank credentials.

Contact

For privacy questions or deletion requests, email alex@chessbuff.app.