HTC One, ATT ISP.
This is my first Smart Phone. When I first setup phone, I saw a "Navigation" icon (blue Arrow) among the apps. I came back to look for it a week later, and it seems to have disappeared from my phone. I don't know if it is an ATT, Android or HTC app. I don't know even if I would use it, since I don't know what it does, but would like to check it out. Any ideas what I might have done, or where I can find it?