Systems and methods are provided for providing content to a user device. Content is provided to a user via an e-book transmission channel via a network for display on a first application, wherein pre-defined metadata associated with the content identifies a content event trigger at a point in the content, wherein the content event trigger is associated with a user accessing a pre-specified point of the e-book. When the content event trigger is reached, a trigger signal is received via the network and transmitting supplemental content that was not previously accessible on the device over the network from a server to the device for access on a second mobile device application that is different from the first mobile device application.