User Interface Content State Synchronization Across Devices

A computer program product comprising a non-transitory computer-readable storage medium containing computer program code that causes one or more processors, when executing the computer program code, to perform operations, the computer program code comprising instructions to:

• synchronize a user interface (UI) state of content of a host application on a host device with a client application on a client device by:
• receiving an event to synchronize the UI state of the content of the host application;
• determining content data of the UI state of displayed content displayed by the host application;
• transmitting to the client device related content data that is related to the UI state of the content of the host application but is generated based on distinct application content,
• wherein the host application is configured to continue receiving user input at the host device and update the display of the host device,
• wherein the client application is configured to display a UI state of content of the client application, based on the related content data transmitted from the host application, using at least one client display interface associated with the client device, and
• wherein the client application depends on the host application to process user commands to the UI state of content of the client application, but the client application is configured to detect input capturing activity of the UI state of content at the client device independent of the host application processing;
• receive a request that was generated to the host application by the client application in response to a user command at the client device, the user command including an input capturing activity by the client application independent of the host application processing;
• generate an updated UI state of the content of the host application at the host device based on the request;
• and
• transmit updated content data corresponding to the updated UI state of content of the host application to the client device.