MTBStackshotCtrl allows you to control your Cognisys StackShot rail with your tablet or smartphone.
It has the same features as the hardware controller and brings some usefull new ones (safety limits, keeps position, ranges and limits in memory,...).
Also, MTBStackshotCtrl, initially, was made to calculate the needed bellows extension to obtain a specific DOF or magnification. So, this app is also able to control a StackShot Rail to automaticaly change the bellows extension (Adaptive Bellows mode). With this mode your lens must be static and your camera must be set on the rail carriage. Take a look at the documentation to have detailled instructions.
You will need a device with USB HOST capabilities to be able to control you StackShot rail.