Deezer application seems to be a good exemple of amelioration of his mobility user experience, look at that.
We see that all the interaction with the application are localisate in the left top of the screen, it’s the old norme. The mobility user experience isn’t really perfomant because the user has got a lot of way to use to do the action. Longer is the trajet, smaller is the time of the utilisation of your application. It’s an old mobility user experience agencement.