I have tried the spotify app on iphone a several times and I think that app is much better than the app for android (which I use daily). Why can't you do the apps equal? For example in IOS you can slide the "now playing" bar to change song or when you queue a song the album picture smoothly moves to the left in the now playing bar. I think the iPhone app is awesome and I hope that the android app will be as good as that very soon. Someone noticed or feels the same way?
I think the issue with making the apps equal is I would suggest they are both developed by different teams in different programming languages meaning certain features might be much much easier to implement on one platform and much more difficult on the other.