Hi Carol:
Thanks for your advice. I did contact Pioneer Rayz a few times but they have not responded. I think they are kind of out of business. Their app download points to Apple store but it came back with message "App not available. This app is currently not available in your country or region."
There seems to be 2 options
1) I can try to change my phone country origin. But my understanding is that I need clear all my accounts with Apple first. This is not easy to do and change back.
2) If anybody in this community has a copy, can I get it from them. I don't know about any legal complication.
What do you suggest? Thanks again.