Support
Email toterack+mexicantrain@mail.grokbot.com and include your iOS version.
Restore a purchase
Open Settings or the Pro screen and tap Restore Purchases with the same Apple ID. Pro is a one-time purchase, charged once.
Offline play
After the app is installed, a match does not need a network. Leaving mid-round keeps the same shuffle.
License
The app uses the Apple Standard EULA.