Terrible

I got this app so I could listen to archived episodes of TED Radio Hour while taking my walks. As soon as I leave the house, it cuts out, never to be retrieved and I get a ridiculous message saying "oops, we goofed". Is this a wi-fi based app? I get other apps just fine while out walking. At this point,this app is useless for me.

Art lover, too about NPR One, v1.6.9