Hi Clyde,
I would like to bring to your attention my website where you can also read about possible applications of NanoVNA.
Android programs are often called applications, here NanoVNA-App v1.1.xxx is a nanoVNA application for Windows that was brought to your attention by the first commenter. Read more at mine :-)
73, Gyula HA3HZ
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*** If you are not part of the solution, then you are the problem. ( ) ***
Gyula Molnar