Worked only once

Please fix! Lots of bugs
I downloaded today!
First, i scanned a product and when i tried to scan another product the scanner stopped working and screen went black and froze and then i got a pop up asking if i would like to rate the app. But its frozen!!! So I re-installed and same problem!!! I give 1/2 star as a rating because it basically doesnt work.
Deleting!!!!.Too bad i was excited about this. :(

Nikkiloveslove about GoodGuide, v4.0.4