Map Plus is developing into a very useful tool for geologists. A barrier to ease of use, however, is the method used to create lines. The current method is very clunky and non-intuitive: as soon as you choose, create line, you get an arbitrary segmented line that you have to start dragging vertices to fit the form that you want.
It would be great to be able to creat line just by starting to draw on the screen with an Apple Pencil, sort of like freehand drawing on photos. One would also need an alternative method for finger rather than stylus input. Programs like Field Move and GIS Pro offer several different methods, all of which work more smoothly than Map Plus' current method.