In order to process the responses live or sync any responses collected offline, your tablet needs to be connected to WiFi and have Surveyapp running.
You can check the status of your devices here:
https://app.surveyapp.io/devices/
If your device is connected to WiFi, the WiFi icon will turn green.
Please note: The ON label next to the WiFi icon simply tells you that the device is set up with Surveyapp. It should not be mistaken for a "connected device”.