The editor uses TTF text rendering in all modes, but the iOS runtime uses bitmap text rendering. This means that you can input non-ascii letters in textfields from an editor in iOS mode, but on an iOS runtime you can't by default (need to use a custom font for that).

The editor in iOS mode should work the same as the iOS runtime in this regard.

Steps:
- Create a project with a monobehaviour on a GO with a GUI method just handling a textfield.
- Enter playmode.
- Enter some non-ascii characters.
- Observe how this works just fine.
- Build and run the same scene on an iOS device.
- Enter some non-ascii characters.
- Observe how this fails.