The cost is available in the app store (link above). This is not like NewKinetix. TouchControl provides access to network (PC) based IR hardware, and also allows you to execute commands, scripts, executables, etc. on your PC, AND control the mouse and keyboard - all remotely with no line-of sight necessary. It does not (yet) provide access to iPhone-attached IR accessories.

One of TouchControl's best features is allowing you to create completely custom remote screens via the PC software.

Both apps have their uses, no question. TouchControl is probably most useful for the HTPC user, but anyone who needs remote IR & PC control capabilities, and wants to have lots of fun creating your own personal remote screens for your iPhone, take a look at TouchControl.