Thank you for our suggestions. I'e checked out Jump Desktop and other apps that Matt gave me, but I did not want de of fees. I finally found RealVNC's Vic Viewer. Yes, it is free so, I downloaded it at AppStore. Now, I have it.
Question: Where is the + sign? It tells me "Tap on '+' to connect to your computer if you know IP or host name" so, I looked everywhere but, I do not find it. I need your help.