Can I listen to the tracks on the App offline? On an airplane?
Absolutely. We actually recommend that you download the tracks, rather than streaming them. That way if you need to listen to them offline (without a good connection) they are right on your device. Also, listening from the download function insures the track will play solidly and not stutter due to wifi/streaming issues.
To download the complete program to your phone, go into the program and simply click the little cloud with a down arrow:
To download individual tracks of a program, go into the program and swipe left on a track to see the options: You will know the download has started when you see the gray circle slowly turning to white.
Remember that each album could be several hundred MBs in size; hence, it may take some time to download depending on your internet speed.