Both Elite Guitar and iFretless Guitar both received some update attention this week.
Elite Guitar got some interface simplifications which to be honest are needed. It's a promising app which is a bit tangled-up with option panes sliding in from all directions, in response to various swipe gestures and arrow buttons. I think it just needs to have all the preferences rolled up into one panel with nice clear categories. And we're done. Oh, and please roll the 'Solo' playing into the the 'Chord' fretboard ... that would help immensely!
iFretless on the other hand got a fix or two, and an improved distortion sound. Not sure if there anything wrong with it before, but after my update I played with it and it does sound nice and warm. Very enjoyable. What I want from iFretless is scale markings on the fretboard though!