Yes, Space shooter - Galaxy attack offers a free version that allows players to enjoy many features, with optional in-app purchases for additional content and enhancements.

While you can play Space shooter - Galaxy attack offline, certain features, such as online multiplayer and in-game purchases, may require an internet connection.

To contact support or send feedback for Space shooter - Galaxy attack, you can usually find a support or contact option within the app's settings menu or visit the developer's official website for additional assistance.

You can manage or cancel your Space shooter - Galaxy attack subscription through the app store settings on your device, where you can find your active subscriptions and make changes as needed.