A wireless end-user device has a wireless wide-area network (WWAN) modem and supports multiple wireless network types. A network service activity control policy set has a policy element that associates one or more Internet activity access controls with at least one end-user application. One or more processors determine whether to apply the Internet activity access controls to an Internet access request by or on behalf of the end-user application, based at least on which of the wireless network types is configured to support Internet service activity. The determination may further be based on whether or not the application is interacting with a user. When the controls are to be applied, network activity for the Internet access request is delayed until it can be associated with network activity for one or more other requests not associated with the application.