I had this Jio sim with my device, I have tried and tested the Jio app on my phone. The basic interface is good with a limited no of songs and albums are listed on the app which makes it very annoying to work with. I don’t know but it won’t let me play or open the app unless I’m using the Jio data on my phone. I don’t feel this should be good with any operator like with wynk music. I can play and stream over any data or wifi connection but Jio music refrain me doing that. I guess this is a pretty bad feature in Jio music. And, I don’t recommend Jio music to anyone. Look for any other online streaming app better not to use Jio music.