Poor product, no support!

This app is a sham. I went to purchase the full app and when I paid for it, it crashed. Now the app doesnt load at all, even after restarting. Emailed their support, no response. Now Im $11 poorer and no app too.

Smackman82 about GuitarToolkit - tuner, metronome, chords & scales, v2.5.2