iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
iTunes Continues Its Climb: 3rd Largest Music Retailer
1. Walmart (15.8%)
2. Best Buy (13.8%)
3. Apple iTunes (9.8%)
4. Amazon.com (6.7%)
5. Target (6.6%)
Since its inception in early 2003, iTunes quickly became the leading digital music store. In November of 2005, Apple breached the top 10 US music retailers (for both physical and digital sales).