Blood Pressure App Pro offers a free trial period for new users to explore the app's features. After the trial, users may need to subscribe to access all functionalities, as there may not be a fully free version available.

Blood Pressure App Pro can function offline, allowing users to log their blood pressure readings without an internet connection. However, an internet connection is required for features like syncing data across devices or accessing online resources.

To contact support or send feedback for Blood Pressure App Pro, users can access the help section within the app, where they can find options to reach out via email or submit a support request. Additionally, contact information may be available on the app's official website.

Users can manage or cancel their Blood Pressure App Pro subscription through their account settings within the app or through the app store where the app was downloaded. Detailed instructions are usually provided in the app's help section.