Chess Master Support
For help, purchase restoration or privacy questions, email service@lixingfuli.com.
Restore Chess Pro
Open Settings → Purchase & restore → Restore purchases. Use the same Apple Account used for the original purchase. Chess Pro is a one-time non-consumable purchase.
Game and lesson progress
Progress is stored on your device and does not sync through an in-app account. Removing the app or clearing local data can remove local progress. A verified Chess Pro purchase can still be restored.
Sound and spoken lessons
Open Settings → Sound effects to control both lesson speech and interaction sounds. Device speech quality depends on the installed iOS voices.
Before contacting us
Please include your device model, iOS version and a short description of the issue. Do not send passwords, payment-card details or personal information about a child.