Every time i try and download this app it goes all the way to 100% then i get a pop up saying that it had an unknown error 18 (i think its 18). Now I have this app where it scans apps for threats called Antivirus or something. I am starting to think that this app is causing a problem with downloading. I did see another post where some1 stated that if Verizon or HTC were that worried about viruses on the phone then it would of came with a antivirus or malware detection already installed. Which makes sense to me.