PREDATOR - the useful camera app -

You want to photograph a souvenir picture at a popular spot,
but can a person across the front and the back readily photograph it by an obstacle?
"PREDATOR" can photograph only stopping person and scenery without minding a moving person and car.

The operation is very simple!
1)fix iPhone so that a subject is in the frame.
2)If a moving object disappears, you only press the shutter!

take a souvenir picture just as wanted in a crowd!