Race Master 3D: Car Racing is free to download and play, but it may offer in-app purchases for additional features, upgrades, or customization options.

While Race Master 3D: Car Racing can be played offline, certain features, such as online multiplayer modes and updates, may require an internet connection.

To contact support or send feedback for Race Master 3D: Car Racing, you can use the in-app support feature or visit the official website, where you'll find contact information and resources for assistance.

You can manage or cancel your subscription for Race Master 3D: Car Racing through your device's app store settings, where you can find subscription management options, or by following the instructions provided in the app.