Code for "relevant" to only show field in mobile app?

[JanelJohnson]

I have a survey with a hidden geopoint field that is causing problems when opened as a webform. Is there code I can enter in the "relevant" column of the xls spreadsheet to only use this field if viewed in the mobile app?

[IsmaelChivite]

This expression pulldata("@property", 'OS') will return an empty value when used within the Survey123 web app. That should help you tell if your form runs in the web app or the mobile app. 

Just curious, what type of problem are you observing when using a hidden geopoint question in the web form? Can you share an XLSForm and describe the problem?