Greetings Colleen;... Shucks, I'm still hoping for a way to remotely view someone's iPhone, so I can help faraway clients. (That's not possible yet, is it? I've been out of touch.) ...
There is a way of remote viewing another's iOS device but one won't have control of the other party's iOS device. It's slow, but it works. *It involves both parties to have Macs.
1. Do a Screen Share of the other's Mac.
2. Have the other person plug their iOS device into their Mac.
3. Have the other party close iTunes when it automatically launches.
4. Launch Quicktime on the other's Mac.
5. From the File menu, select "New Movie Recording."
6. In the window that appeared, where the start recording button is located, just to the right of it is a small arrow pointed down. Click on it and select the connected iOS device.
7. In a few seconds, you'll see the iOS screen displayed from their Mac.
It's klunky, but it works. You'll have to have the other party do the things you want them to do on the iOS device.