Contacting support
Parallax: 4D Chess is presented as a premium one-time-purchase game. If you run into technical issues, email support with your device, app version, and a short description of the issue.
Do I need an account to play?
No. Parallax: 4D Chess is intended to work as a premium game without a separate Coyne Studios account.
Does the game include ads or in-app purchases?
No. The game is described here as a one-time purchase with no ads and no extra in-app purchases.
What if the game crashes?
Close and reopen the app, note the screen or action that caused the issue, and send the details to support.
Does Apple handle anything?
Apple may independently process information related to App Store purchases and optional platform services like Game Center under Apple’s own policies.
Privacy
You can read the full privacy policy here.