I didn’t realize that the font size of the iOS versions was tied to the font size chosen in the desktop versions. I should rephrase this feature request as:
Font size should be a setting that is only for the device/application on which Legend is running, since DPI, resolution and screen size vary between instances. So you should be able to set the font size/font on iPhone, iPad, Android, Windows, MacOS independently, and have the size be different between each instance to accomodate each device’s varying screen sizes.