The Vu is good, seems also to be quite accurate compared to professional meters.(I havent done any extensive comparations so dont take my words for it)
The tuner do give a reading but while chasing feedbackfrequencies, then it jumps around too much and the text is just too small to be readable.
I havent looked at Audelicious in a while but its spectrumdisplay doesnt show the scale, and if i remember correctly then it was not all frequencies either.

I am not looking for an alternative phone, but if i was, then both the iphone and the old windows mobile did have professional tools aviable. but for the most part they cant handle the soundlevels of a concert and therefore needs an extern preamp anyway.