Actually it just contains three sounds but I am already in love with one of the sounds
( an olden time electronic choir sound ) and see me using this as an instrument just for
that sound.
It functions as most of the other Theremin apps and has the possibilities to adjust Octave, Scale, Key, Size and choose one of the three sounds. It is possible that many would not really like any of the sounds but for me like said am in love with one of them and being multi touch and with the possibility to directly affect velocity it can become a good thing to add to your arsenal of instruments.
Plus it is for free and no publicity!
EtherSurface