Apple GPS notification code

Hi, General description and requirments: I am looking for a developer to write a code for a stand alone app (no internet/no servers) that will receive GPS data, and will send notifications for the user (for example if i passed the speed of 100MPH). moreover, that app should be activated at predetermined dates that the user will define. (schedule based). The code is really simple to write... The above is just the general requirments, please contact for more details. Sincerely, Itai