App locks up, prevents connections

I tried using the app on a trip to London. I launched it once and it only showed me a map of the US. When I panned over to Great Britain, it didnt show any hotspots. In subsequent attempts to launch the app, it appeared to lock up at the Boingo logo screen. I kept being unable to log into the free Wi-Fi networks around me, despite turning Wi-Fi on and off and doing hard resets on the phone, until I uninstalled the app. I thought maybe the app got corrupted during installation, but in reading the other reviews, my experience sounds pretty typical.

RedmondChris about Boingo Wi-Finder, v5.11.9