Support
Before writing
Common questions are answered in the FAQ on the home page: age range, tables to 12, the parental gate, offline use, Family Sharing.
Reporting a problem
To report a wrong answer or a bug, please include the iOS version and, if possible, a screenshot. It helps us reproduce the problem on the first try.
Refunds
Purchases are handled by Apple, so refunds are requested from Apple at reportaproblem.apple.com, not from us.