Carnival HUB is available for free to all Carnival cruise guests, allowing them to access its features without any subscription fees.

Carnival HUB does not require a traditional internet connection to access most features while on board, as it connects to the ship's Wi-Fi network. However, some functionalities may need an internet connection when accessing updates or features beyond the ship's network.

You can contact Carnival's customer support through the app itself or visit the Carnival website for additional resources and information on providing feedback.

Since Carnival HUB does not require a subscription, there is no need to manage or cancel a subscription; simply download and use the app during your cruise.