To upload survey responses to the hosted project, your device needs to have an Internet connection.
Auto-sync
When your device has an Internet connection and auto-sync is turned on, survey responses are automatically uploaded to the server. Auto-sync will run every couple minutes to uploaded any pending survey responses and to check for survey updates (see "Update a survey").
Manually upload data
To manually upload survey responses, press the sync icon on the Surveys page or in the navigation menu.