Should get zero stars

Since updating, this app is grayed out as if still updating and when I try to open it, it just says "waiting" but never updates. I tried deleting it so I could download it again and hopefully fix the problem but it will not delete. It is just stuck on my screen and completely nonfunctional. When I went to the developer website to get help I found no info for support or contacting them.

TineTine99 about QR Code Reader by Scan, v1.7