It runs on iPhones and other smart phones in addition to iPads.
The App captures a photo and also records the coordinates, viewing direction and you can add notes to the photo. It stores a non-annotated photo too. It also shows location on a map.
Link to Website of Theodolite
These are some screen shots from their website.
The App can record the coordinates in several different projections with add on it can even record coordinates in State Plane. You will need to calibrate the compass on the iPhone so that it reads directions to True North.
