Depth of Field & Exposure Calc App Reviews

It appears ok so far. My need is for close focusing depth of field adjustment. I wish the diagram would show the numerical distance from the focus plane to the nearest focus plane. And from the focus plane to the far focus plane. Then I am able to shift the depth of field in total. Otherwise I must calculate it myself. That is part of why I am paying someone. Maybe my next step is to be tethered to my omputer. I am just trying to take fewer images to get what I want.