If we have another mobile service provider [eg AT&T, Xfinity, Spring, Consumer Cellular] and we get our daughter the GIZMO-3 on Verizon, of course. Will our iPhones be able to run the GIZMO App and function normally in communications with the Verizon GIZMO-3. Additionally, if our daughter is under 21 will an adult have to open the Verizon account for our daughter's GIZMO-3 ?
