Music streaming apps like Spotify offer users unlimited access to catalogs of licensed digital songs. Digital music content can be streamed over the Web and any smartphone or tablet with Internet connectivity support. Some apps even let you sync songs to your device for when you don't have an Internet connection.

Spotify is one of the more popular music streaming apps, and for $10 a month, users are can listen to and create playlists from a library of over 20 million songs, ad free. Spotify currently has a promotion that will allow users to upgrade to its premium service that opens up features such as allowing users to listen to music offline.

With several other free streaming apps to choose from, enjoying music from your favorite artists when you're on-the-go has never been easier. Many also offer subscription-based services and apply different rules for each platform.

  • Apple Music spawned from the music streaming service formerly known as Beats Music and has a monthly subscription fee of $10. For $5 more, subscribers can take advantage of the family subscription which allows up to six people to share an account. New subscribers can enjoy a three month free trial that allows access to exclusive features including Beats1 Radio and streaming concerts like Taylor Swift's 1989 World Tour.
  • Pandora is a free streaming service that offers music playlists based on the user's' music search. You can create up to 100 unique stations based on a particular artist, song or music genre. Pandora will even recommend up up to 6 stations for you based on your listening habits. Pandora users have the option of upgrading to Pandora One, which promises improved audio quality and removes the ads. Pandora One features also include custom skins and more song skips per day, all for $4 or $36
  • SoundCloud is a free music streaming app, the largest community of artists, bands and podcasters. Rather than listening to songs from major artists and record labels, you can listen to tracks from up and coming musicians and producers. Some major artists also use this platform to share new music with fans before it's released.
  • Samsung Milk Music is free music streaming app, curated by experts. It lets you create your own radio station to personalize your listening experience so you can hear exactly what you like, whenever you like. You can fine tune your radios station by choosing from spectrum of popular, new and favorite songs. For $4 a month, Samsung Milk Music will bump you up to premium service for an all-you-can-listen buffet of music. You get unlimited ad-free listening, offline streaming and unlimited song skips.