Called Tech Support. This particular agent said shed had 4 calls on the same issue "today". She also said not to worry. The App is just a map showing hotspots and you can look for hotspots the normal way withOUT the app. Which is cool bc then I wont be unnecessarily using data (for an app which other users have pretty much universally panned anyhow).
Typical AT&T about AT&T Global Wi-Fi, v5.1.63