DisIllusioned

The concept is good and with a few improvements could be a useful tool in the field.
The lines are way to hard to control, stop or manuver accurately.
Need to have an angle lock feature to keep the line straight when desired.
Add an option to change the line length and angle via the keyboard.
The zoom feature does not zoom on the sketch, but instead forces you to pan all over the page trying to find it.
When you do find the vertex youre looking for in the zoomed in mode, the double tap sends the vertex and line off to some unknown coordinate.

Dont waste your money on this app until they fix it.

Inspector Gadget 1948 about SketchAndCalc Area Calculator