Privacy, in plain language.
Sudoku Coach works without an account. Local play stays on this device unless you choose to create an account for sync.
Operator and contact
Sudoku Coach is operated by Julien Bouisset in France. For privacy, support, or legal requests, email phpman1@gmail.com.
Local play and accounts
Sudoku Coach works without an account. Local play stays on this device unless you choose to create an account for sync.
Sync, purchases, and support
When you sign in, selected puzzle, lesson, and account data can sync across devices. Sudoku Coach stores verified provider references, lifecycle and renewal state, access dates, financial state, account-binding hashes, and signed-event receipts. It does not retain raw Google Play purchase tokens or full card details. New billing receipts contain normalized fields and a payload hash, not full webhook bodies; legacy webhook payloads are scrubbed after 30 days.
Your choices
You can export or delete your account from Account settings. Minimal pseudonymous purchase ownership and event receipts remain after deletion to prevent cross-account claims and preserve transaction integrity. Deletion does not cancel Apple, Google, or Lemon Squeezy billing.