Caution - expect to pay more

I just downloaded this app for ten bucks, and was immediately confronted by an upgrade or plus module that costs an extra five bucks to make this thing fully functional (play chord sounds, add instrument tones etc). I would have preferred to know that the full cost of this app was fifteen bucks up front. Seems misleading to me. I would stay clear of this app on that basis alone if you believe in transparency and fair play in your commercial dealings.

GuitarGuy66 about GuitarToolkit - tuner, metronome, chords & scales, v2.0.1