Zoho Creator iPhone App Geofencing Problem

Zoho Creator iPhone App Geofencing Problem

Hi, I've created a simple form that can only be submitted by a user from a specific geographical location using the geofencing option on the right panel in form builder. I tested it out by trying to submit a form from an iPhone 6 Plus, iOS 10.3.3, location services for the Zoho Creator App are turned on. When I click submit, the Zoho app says it's unable to determine my location and to turn on location services. I'm at a stand still, can anyone provide some insight? Thanks.