Updating a Survey that is currently being displayed on the iPad is possible with Sync Device button from the portal. 

This is ONLY necessary if you want to update a Survey that is currently gathering feedback.  The App will automatically sync all data from the portal each time you login.

*NOTE: It may take up to 90 seconds for the iPad Survey to update after pressing Sync Devices.

To update a live survey: Survey Kiosk Module -> Survey Management -> Questions -> Select Survey -> Sync Devices