Live Sketch HD is much like Live Sketch for the iPhone but with all the advantages of running off your iPad, viz higher resolution and larger workspace. Both LiveSketch products are based on the Harmony Procedural Drawing tool….
“The idea of the app is based on the procedural drawing tool “Harmony” by Ricardo Cabello – mrdoob.com.” …..iTunes
Both work well with fingers but best control is to be had using a good stylus,
Art + Photography 