For Android devices, I suggest trying AntennaPod. It is easy to find and subscribe to podcasts in AntennaPod, and it has good helpful listening options. On Apple devices, Overcast is widely acclaimed as the best podcast aggregator app. You can subscribe to either the NLT or GNT podcasts via those apps. If you are wanting to listen to the NLT series, you might like our dedicated Daily Bible Reading Android app best.