Monthly / Annual subscription is used for Advanced GPX and multiple devices. And you should activate it via the button of Cloud icon next to the search bar.s. We will keep providing more features or services that based on the cloud server in the future. Thanks for your great support and drive us make it better. The charge fee won`t be increased even if new value-added features or services have been released. Please pay attention to our official websile and official facebook account to know latest news. htttps://www.thinkskysoft.com