Frustrating to use – Draft Paper Review

I downloaded this for some simple floor plan brainstorming, and cannot figure out how to do basic things in it: When learning to draw a dimensioned line, I somehow made a 37‘ marker appear. No matter how many times I clicked ‘undo’, it would not disappear. Choosing the ‘erase’ feature and tapping it likewise had no effect. Then, I figured out how to draw a dimensioned line, but wanted to draw it at 55’. At the scale at which the full length is on screen, the precision only allows for units of 12 feet, so I drew a 48’ line with the intent to stretch it after zooming in. But, there is no way to stretch a line after drawing it - at least, not with the basic features. I was unwilling to buy the advanced features after so little initial functionality, since the program might continue to be unuseful.
Review by Romana III on Draft Paper.