However, there remained a couple of apps that can still bring new music to your iPhone. Check the list of these best music download apps for iPhone in our post. SEE ALSO: 5 Ways to Stream Music on iPhone to Get Tons of Music. SEE ALSO: How to Play YouTube Music on iPhone in the Background. Spotify. Spotify is widely known in the United States. Wondering how to download music to your iPhone? We know how! Just beware that some of the apps can help you download music for free, but you would have to pay for the app itself. So, if thought that the app will be for no charge, but the price is written – you will still be charged (however the music you download with this app is likely. Jan 26, · Many people like listening to music on their mobile phones, including the new released iPhone 6S. So the need to download and import music to iPhone (iPhone 6S included) is increasing. To download music into your iPhone 6s/6s Plus/6/6 Plus allows you to enjoy the music anytime on the go.