How can we help?

Sudoku Coach keeps local progress on your device and syncs it when you sign in. These steps solve the most common problems.

A puzzle or lesson will not load

Check your internet connection for coached replies or account sync, then close and reopen the app. Local puzzles and saved progress remain available while you are offline.

Restore or manage a subscription

Sign in to the same Sudoku Coach account used for the purchase. Choose Restore purchases and wait for server verification. Account lists each source separately: Apple in the App Store, Google in Google Play, and web billing in Lemon Squeezy.

What changes Coaching access

Cancelling stops renewal but keeps Coaching through the verified paid end. Verified payment grace keeps access through its end. Payment hold, expiry, or revocation ends access. A refund record alone changes access only when the provider also ends or revokes the subscription.

Get help signing in

Automatic password reset is not available yet. Email support if you cannot sign in. Include your account email, but never send your password.

Export or delete your account

Open Account to export or delete synced data. Deleting an account does not cancel any subscription, so manage every provider first. A purchase linked to a deleted account cannot be restored automatically to another Sudoku Coach account.

Contact support

Include the device type, app version, and what you were trying to do. Never send your password.