iHeartRadio compare (iOS)

If you're wondering which free streaming audio app to pick from the ocean of apps at the App Store, iHeartRadio is a great way to break in to the genre, with several useful features not found in other apps.

Pandora is an excellent app for listening to and discovering new music. The ads are nowhere near as intrusive as broadcast radio, and for a tailored music experience, they are a small price to pay.

If you're looking for a streaming-music alternative, Slacker Radio is a good choice. But if you're willing to spend money on a subscription, the app is better than most in its genre.

While you can still get playlists by genre or artist, Songza's unique concept of assembling playlists according to your current activity makes it a great download for music lovers.

TuneIn Radio is one of the best streaming-radio apps available for when you want to listen to local or national radio. Most will be able to get by with the free version, but for DVR-like recording capabilities in the Pro version, you'll need to decide just how much you use the app.