Messenger: Text Messages, SMS typically offers a free version that allows users to send and receive text messages. However, certain features may require a subscription or in-app purchases.

Messenger: Text Messages, SMS does not require an internet connection for standard SMS messaging but may need a data connection for additional features like multimedia sharing and group messaging.

You can contact support or send feedback for Messenger: Text Messages, SMS through the app's help section, which typically provides options for email support or direct messaging with the support team.

You can manage or cancel your Messenger: Text Messages, SMS subscription through the app's settings or your device's app store subscription management section.