The system font on the phone (also iPad, etc) is SF Pro. There’s a problem with SF Pro in that the numbers are not all the same width. I’ve been using Verdana to display numeric data where things should line up. The problem is that selecting a different font is rather awkward.
Suggestions:
Provide a way to specify the fonts to be used in an app. This way one could rapidly select the desired font/size from a much smaller menu.
I agree that changing font in the Inspector is incredibly awkward. Once I’ve got it set I usually duplicate a control instead of creating a new one to avoid the aggravation.
I’ve used a separate screen for font selection. It’s a variation of the one from Xojo Examples /Platforms/iOS (“Available Fonts”), but I changed it so the font name uses the its own font so you can see what it looks like.
I set this font as preference for the rest of the app.