A method, system and apparatus for application sharing smoothness when updating application screen imagery in an application sharing system. A shared application smoothness system can include an application sharing server configured for communicative coupling to multiple application sharing clients. The system further can include an application image update smoothness processor programmed to consolidate changes to adjacent image regions in an image of a shared application for transmission to the communicatively coupled application sharing clients in a single application image update interval. A shared application smoothness method can include the steps of detecting common shared image changes across multiple adjacent display regions of a shared application image and transmitting updates for the multiple adjacent display regions to communicatively coupled application sharing clients in a single image update interval.