The app was great for making simple drawings of lots where all the boundaries were described by angles and measurements. However, in the real world of deeds, it's more likely that a boundary will be a river or an unknown distance "to the big cherry tree" so I needed to be able to draw portions of lots freehand. I also wanted to be able to merge multiple drawings while keeping them in separate layers so I could match up adjacent properties. So I decided to purchase the Pro Version of the software and use it on my MacBook Pro where I could draw more easily with a mouse. That gave me the ability to draw freehand the boundaries that followed rivers, etc. I was particularly interested in matching original properties to modern ones, so I also wanted the ability to superimpose my drawings over imported maps.
The most complicated drawing I attempted with the software had 31 measurement descriptions outlining an "island", followed the Nappan river for a time, and included a "sight line to a birch tree" all superimposed on a Google Map. There's no way I could have done that with graph paper and a protractor. You can see the finished Metes and Bounds drawing on the Smith Road: The Moffat Lots page of this website. Superimposing the drawing on a Google Earth map took me on a whole new learning journey about the different kinds of "North" and the various ways maps are scaled on and offline. Thank goodness for my surveyor friend!
The Basic Version of the computer software would probably have been sufficient for me and I haven't used any of the really advanced features my surveyor friend was excited about. Best of all, I didn't have to learn AutoCad!
At the time I purchased my computer version there was only a simple app for the iPad but now I see they have the Pro version for the iPad as well. Here's a link to the computer version. If you want to experiment, I'd recommend the simplest iPad app to start. And I'd love to hear about any apps you're tried.