Is there a ranking question that's mobile friendly? The current drag-n-drop, then resort question type for ranking works great on a desktop, but not very effective on the phone.

Thanks in advance.

On phones I'd use the multiple numerical input with validation "unique(self)".
You may check the screen resolutuion or the kind of device at the beginning of the survey and display the normal rankuing question on desktops the other on smaller devices.

Joffm

Can you provide an example? I've tried a few configurations, but apparently, I'm not setting this up correctly (see attached).

Denis has several examples here

Thanks for the link and the examples!

Warning about the demo link : max(self) have issue in the 1st version of 3.X .

And with multi numeric : you don't need is_int(NUMBER_SQ003) now since you have a setting.