I love listening to music but I am often away from the internet and in places where there is no signal. So the first thing to do is to make sure that your music is downloaded to your device. If you are an iPhone user, don't worry - all the songs you purchased from the iTunes store will already be available offline, I also recommend checking out More info Source. However, Android users will need to download their music through a third-party app, such as Google Play Music or Spotify. Once the music is downloaded, you will be able to access it without using any data.
