Show personalized advertisements.
If you don't like ads don't download this app, you'll not like it :)
Better user experience.
![Time - Hans Zimmer [Inception] (Soft Version, No Mid Roll Ads) Sleep, Study, Relax - 1 Hour screenshot 1](https://i.ytimg.com/vi/AhYMdy3PG5k/mqdefault.jpg)
9Apps 4.9
