This application shows graphically how the the focal plane is altered by tilting the lens, adjusting the focus and the aperture. The user can select two points of focus and it will calculate the required angle.
It has a list of All Canon and Nikon Tilt Shift lenses, but also allows the user to select a custom lens allowing for greater variation.
It's currently taylored for Full Frames sensor allowing the user to select 24mm or 36mm for the field of view.
It shows the field of view and demonstrates how shifting the lens affects it.
It also handles scenarios so that you can enter the height of an object, distance of an object and given the height of the camera off the ground it will calculate the required angle and aperture to obtain the correct depth of field.
The application is only available in English.
This video describes the functionality of the application
This video describes how to use the Scenario Calculator